NTK AFRM on national backorder until June 1, 2015

The NTK AFRM is on national backorder until June 1, 2015.  Unfortunately, the market has few very high quality, low cost wideband solutions.  Many systems focus on the ancillary features (bells & whistles), while the NTK AFRM and the NGK Powerdex AFX (now Ballenger Motorsports AFR500) focus exclusively on precise & accurate wideband air fuel ratio measurement.

Fortunately, the Ballenger Motorsports AFR500 is currently in stock and available!


After describing the differences between the NTK AFRM and Ballenger Motorsports AFR500 to customers, the most common question is “which is better?” or “which one is better for me?”

The concise answer is that the AFR500 is the better choice for most.  Unless you must have a lambda readout or need to read in the extended lean range, the AFR500 is generally a superior option.  The AFR500 has proven more reliable (as the Powerdex AFX), has more sensor options from inexpensive to lab quality, and was designed by the industry leader in calibration & lab equipment.  The NTK AFRM in contrast, while still an excellent unit surpassing other market competitors, was designed by a different group to reduce cost compared to the Powerdex AFX / AFR500.

We believe the core function should come before the bells & whistles and that design should not be compromised for profitability.  The Ballenger Motorsports AFR500 and the NGK Powerdex AFX before it stand as the benchmark for wideband air fuel measurement below the $1500 price point.



NTK Air Fuel Ratio Monitor (NTK AFRM) Sensor Available!


NTK released the Air Fuel Ratio Monitor (NTK AFRM), replacing the NGK Powerdex AFX earlier this year. To date, no replacement sensors are available for the NTK AFRM and our customers have asked for them! While this sensor is not available in the product chain yet, Ballenger Motorsports is making them available! We are the only place to purchase the NTK AFRM replacement sensors as of 9/18/2014! The NTK AFRM Replacement Sensor is part number SNSR-01006.

We also offer the Ballenger Motorsports AFR500 which is a direct replacement for the NGK Powerdex AFX sharing the same dimensions, specifications, features, & function.  The AFR500 can use the same variety of well proven Bosch & NTK sensors which already have common availability.

Ballenger Motorsports AFR500 Product Release!

Ballenger Motorsports AFR500 - Air Fuel Ratio Monitor Kit - Wideband O2 System

As you may already know, the NGK Powerdex AFX has been discontinued. Our customers have asked for a continuation of the Powerdex AFX and we are offering a direct solution! Ballenger Motorsports is releasing the AFR500 as a direct successor to the Powerdex AFX. We have heard stories of vendors gouging on remaining Powerdex AFX units and used units being sold at extreme markup as customers scramble to get the last Powerdex AFX units still available.

To fill this void and to continue to offer a direct successor to the AFX that works with a variety of Bosch and NTK sensors, Ballenger Motorsports is proud to release the AFR500! The AFR500 works with the same sensors & wiring, while offering the same reliability and accuracy as the discontinued Powerdex AFX! Designed by the same group as the Powerdex AFX, the AFR500 has identical dimensions, specifications, features, & function. We also offer some additional options which were previously unavailable such as a shorter harness length and additional sensor options.

The AFR500 makes true wideband technology with top of the line measurement equipment available to enthusiasts and tuners for the first time. Air fuel ratio offers critical feedback for tuners to alter parameters to achieve maximum power and efficiency from their engine.

The Ballenger Motorsports AFR500 Air Fuel Ratio Monitor offers a range of true wideband sensors from low cost options to lab grade sensors. No competing system offers this flexibility in this price range. Comparative systems typically sell for thousands of dollars for dedicated calibration equipment. The AFR500 is capable of reading air fuel ratio values from 9.0:1 to 16.0:1 with a resolution of 0.1 to provide excellent resolution in the tuning range of most performance vehicles. The Ballenger Motorsports AFR500 utilizes sensitive Nernst style, pump & reference cell based sensors that can detect a wide range of oxygen concentrations in order to properly interpret air fuel ratio in a variety of combustion environments.

The Ballenger Motorsports AFR500 offers a linear analog output to be used as an input to engine control systems, gauges, or data acquisition systems. The output varies from 9:1 at 0v to 16:1 at 5v.

At $299 retail, the base AFR500 will include the following:

  • Large, bright digital display controller (~3.4in x 2.7in x 1.3in)
  • 13 ft wiring harness with sealed connections
  • Bosch LSU 4.2 wideband oxygen sensor
  • Weld in exhaust boss & plug
  • Mounting Velcro
  • Comprehensive Installation, troubleshooting & tuning manual
  • 0-5 volt Analog Output Signal

Compatible Fuel Types:

  • Gasoline / Petrol (leaded or unleaded)
  • Alcohol (Methanol)
  • Ethanol
  • Compressed Natural Gas (CNG)
  • Liquefied Petroleum Gas (LPG)
  • Propane
  • Many other combustible fuels

Options include:

  • NTK production grade sensor (+$50)
  • NTK calibration grade sensor (+$150)
  • NTK lab grade sensor (+$450)
  • 7ft wiring harness (+$10)

Wholesale and volume seller inquiries welcome at sales@bmotorsports.com.

To address some questions, below is a quick Q&A:

Q. Why offer the NTK AFRM and the AFR500?

A. The NTK AFRM is a new architecture using a new sensor. Many of our customers want to use the well proven NTK and Bosch sensors with the known reliability and excellent track record that the prior system offered. To meet this need, we released the AFR500. Designed by the same group as the Powerdex AFX, the AFR500 has identical dimensions, specifications, features, & function.

Q. Should I get an NTK AFRM or an AFR500?

A. The AFR500 has a long, proven track record providing accuracy, reliability & precision of systems typically costing $1500 or more. The AFR500 also works with several sensor options while the NTK AFRM only works with a single sensor type with no replacement available as of July, 2014. The NTK AFRM was designed by a different group and has yet to establish a following.

Q. Can you explain these NTK sensor options?

A. The NTK sensors come with varying levels of capability based on their intended usage. Most systems will simply offer an NTK sensor as a single option which can be misleading when you are comparing lab grade equipment at high cost to a system using the lowest cost sensor in the same family. We have chosen to provide customers with a full range of offerings.

Q. Is the NTK sensor better than the Bosch sensor?

A. In some cases, yes. For leaded fuel, for periodic moisture, or contaminant exposure the NTK sensor family clearly demonstrates superior performance. Many tuners have reported thousands of dyno hours on NTK sensors with leaded fuel while the Bosch sensors die quickly with lead. No sensor is immune from poor tuning however and a rich misfiring and exhaust backfiring engine can damage even the most expensive sensor in a matter of minutes. For a casual street user on pump gas, there is a less discernible advantage for the higher cost sensors.

Q. Can you break down the sensor options further?

A. Sure, here is a more structured breakdown:

  • Standard Bosch Sensor: This is the sensor NGK packaged with the Powerdex AFX in 2010 and earlier. A solid sensor used in the majority of aftermarket widebands and OEM many vehicle applications
  • Production Grade NTK Sensor: This is the sensor NGK packaged with the Powerdex AFX in 2010 and later. Newer and lower cost than the Calibration Grade NTK Sensor, this sensor offers the benefits of the NTK architecture at a reduced price.
  • Calibration Grade NTK Sensor: This is a more robust and slightly more accurate NTK sensor typically used in higher end systems. The reputation of the NTK sensor was largely built upon this sensor.
  • Lab Grade NTK Sensor: This is a highly accurate NTK sensor used previously only in systems costing $1500 or more.

Q. Why is the AFR500 special? Why do pro tuners recommend it so heavily? Why is it better than other products?

A. The AFR500 and the Powerdex AFX before it set a new benchmark in price / performance for the aftermarket. OEMs & Laboratories use extremely accurate and expensive hardware during calibration and detailed analysis for oxygen concentration values. Prior to the AFR500 & Powerdex AFX, this accuracy equipment was only available at high cost and typically only known by pro tuners and professional calibrators.

In the single instance of the AFR500, a major OEM supplier leveraged their relationship with the most respected laboratory & calibration equipment manufacturer to create an entirely new grade of product. While the AFR500 does not offer the bells and whistles of some systems, pro tuners quickly learned they were dealing with quality equipment that they previously paid thousands of dollars for at an incredible price point. With a wide range of sensor options available, the AFR500 allows tuners and consumers alike to use true calibration grade equipment at an incredible price point!

Most aftermarket companies represent groups of entrepreneurs hoping to capitalize on a market niche that was not being adequately served. While other aftermarket products offer many ancillary features, their reverse engineering has only taken their fundamental function to a point of nearly as good. The AFR500 offers unrivaled accuracy, reliability and sensor longevity at this price point.


Replacement Sensors

Replacement Harness


If you have any questions, please feel free to contact Ballenger Motorsports at sales@bmotorsports.com.


NTK AFRM (Air-Fuel Ratio Monitor)

The NGK Powerdex AFX is replaced by the Ballenger Motorsports AFR500 or the NTK AFRM.

The NGK Powerdex AFX has been discontinued by NGK. The NGK Powerdex AFX is replaced by the Ballenger Motorsports AFR500 or the NTK AFRM. The Ballenger Motorsports AFR500 works with the same sensors, wiring, offers the same reliability and is a direct successor to the NGK Powerdex AFX. The NTK AFRM is a new product offering with a completely new sensor which has no replacement availability as of July, 2014.

NTK has released the NTK AFRM – Air Fuel Ratio Monitor Kit – Wideband O2 – PN 96604 – w/ NTK Sensor to replace the NGK Powerdex AFX.  With a smaller display, simpler calibration, improved diagnostics, increased sensing range, and new sensors, the improvements are significant.

Despite the improvements, the cost remains the same as the NGK Powerdex AFX!

As a limited time promotion for the new wideband system, we are offering a $10 off coupon from June 1st to 30th using the coupon code 060614NMLMXA.

NTK AFRM - Air Fuel Ratio Monitor Kit - Wideband O2 - PN 96604 - w/ NTK Sensor

New Honda Connectors for MAP Sensor and Ignition Coils + Sale on Multec 2 26lb/hr injectors

Newer Honda applications are using different connectors on new applications and we are now offering them in stock!

For the Honda Ignition Coils & MAP Sensor on Honda Fit and similar applications:
Honda Fit MAP & Ignition Connector
Honda Fit MAP & Ignition Connector Kit
Honda Fit MAP & Ignition Connector Pigtail

For the Honda Cam & Crank Sensors on Honda Fit and similar applications:
Honda Fit Cam & Crank Sensors
Honda Fit Cam & Crank Sensor Kit
Honda Fit Cam & Crank Sensor Pigtail

We recently restocked on the popular Delphi 25317628, 26lb/hr injector used on so many OEM applications. They are Genuine Delphi parts used for replacement or new applications that require a short, rapid injector with excellent consistency:

Use the $20 off coupon code 0122145SISZB to receive a discount on four or more injectors until January 31st.

Happy 2014!

The holidays are over and it’s time to get working on those Motorsports projects for 2014. We hope you have a great year and are starting off with a price reduction on our SNSR-01011 LSU 4.2 Oxygen Sensor. This sensor is commonly used in VW applications and a wide range of aftermarket applications like Innovate products, PLX products and many more applications.

We’ve dropped the price to $59.94 in quantity 1 with additional quantity breaks available. For a limited time, until Jan 21st, we are offering an additional 5% off on this sensor bringing its price down to $56.94! The coupon code is 010714L96F6S.

10th Anniversary!

Ballenger Motorsports is celebrating its 10th Anniversary. Looking back, we have grown through 5 different facilities to accommodate our growth over the years. We have added thousands of products. We have helped tens of thousands of customers from automotive manufacturers to customers needing a single terminal. While most customers see our parts on our website, many may not realize that we also offer turnkey wire harness production, electronic product design and production, and connector and housing design and production.

We are offering a limited time, from today to 12/19, coupon for 10% off all of our wideband o2 sensors as thanks for the many customers who have helped us thrive over the past 10 years. The coupon code is 1211138ATA84 .

This holiday season provides a good time to reminisce about our 10th anniversary. We are grateful for all the loyal customers over the years who have helped us reach this point. We look forward to the next 10 years serving the automotive, industrial and military markets with parts and engineering services.

Vehicle Specific Application Pages

While we work on our new database for cross listing part numbers and applications, we are adding some basic pages with application to part correlations. Our first such page is now live on our website under the heading Vehicle Specific on the lower left of our shopping pages. This application page has been in progress and still requires further additions and updates. We hope it will provide a helpful reference in its current form. We plan to flush out some other similar applications and the goal is to eventually allow searching by engine type, vehicle, manufacturer part number as well as replacement part numbers.

Application specific page for the Mazda Miata (click here)

Feel free to send us any known applications for our parts as we are constantly updating this information!

New Honda Injector and Ignition Coil Connectors

Customer requests for these connectors have been pouring in, so we added these new Honda Connectors for a wide variety of Honda powered applications.

2 Way Honda Injector Connector

Housing only – CONN-100319
Kit – CONN-75783
12″ Pigtail – CONN-85783
3 way Honda Ignition Coil Connector

Housing only – CONN-100327
Kit – CONN-75784
12″ Pigtail – CONN-85784

We plan a series of new Honda connectors for sale soon, used on some newer vehicles. We don’t have a full application chart for the above connectors, so let us know if they fit your application and we will update our list.

Ballenger Motorsports Logo Design Contest

Our old logo was created many years ago and has served its purpose well. However, we want a newer logo for use in our media, t-shirts, catalogs, etc. and are looking for a fresh look. We have worked with designers before and often the options are limited. So, we are choosing a different route; a design contest!

The system works through a submission, selection and finalization process where the best design is chosen. So what do you think our new logo should look like? Help us choose the best design by posting feedback on our blog from the contenders you see on the contest page.

Google Checkout being retired by Google

A minority of our customers have come to appreciate Google Checkout as a simple alternative payment system that was helpful for both customers and vendors. Sadly, Google has chosen to retire this system (click here for reference article) and we are forced to deprecate its use.

In better news, we are working on an improved parts database system that we hope will improve part application information greatly. The new system should allow improved organization in our presentation of our parts as well as greater clarity for each part’s applications, cross reference numbers and associated components. We are working hard on this system and hope to bring many improvements online in 2014. A new online cart and checkout system to better work with these improvements is also planned for release in 2014.

Connectors, Connector Kits, and Wiring Pigtails

A very common question we receive relates to why the same connector is offered in multiple options and what those options mean.  Ballenger Motorsports will typically offer a connector in three varieties.

  1. Connector Housing Only. This product provides the customer with the plastic connector housing and any secondary locks the housing requires.  There are various reasons customers want to purchase the housing alone.
  2. Connector Kit.  A connector kit provides the connector housing with any secondary locks as well as terminals and seals for the customer to crimp directly onto their harness.  This does require some crimping skill and may require a crimp tool.  We offer crimping & stripping tooling here. We also provide a terminal crimp validation chart here.  You should check your work and validate your crimp quality!
  3. Connector Pigtail.  We perform the work of crimping & striping the wire and provide you with a connector housing with pre-assembled wire leads.  In some special cases, the wires may not be inserted in the housing but typically the pigtail comes fully assembled.  We recommend you use unsealed butt connectors and adhesive lined heatshrink when completing your weather sealed connection.  Our pigtails do not come with these items because of the wide variance in customer preference.

Siemens 83 lbr/hr Low Impedance Injector Replacements

The Siemens Deka I 83 lb/hr injectors (pn 3105 / FI11405 ) went out of production last year after many years of solid service to the automotive aftermarket.  This leaves a group of customers who need drop-in replacements as they do not want to or cannot retune their engine controls.

For this group of customers, we have added the Delphi 83 lb/hr Low Impedance Injectors ( 01D142x ) as a drop-in replacement for the Siemens 83 lb/hr injectors.  For customers able to retune their engine controls, an even better option is the more modern Siemens Deka IV 80 lb/hr High Impedance injector .  If packaging allows, the Siemens Deka V Shorty 80 lb/hr injectors provide an even better choice.

UEGO Sensor Sale

April 26th, 2013

Ballenger Motorsports is announcing massive price reductions on some wideband oxygen sensors.

The Bosch LSU 4.9 sensor (SNSR-01029) represents the current pinnacle of Bosch wideband O2 sensors and is being rapidly adopted at all levels of production, racing and the aftermarket. As a result of the increasing volume, we can drop this sensor in price massively to as low as $63.99. Increasingly used in production applications and aftermarket widebands, this is the ideal combination of price and performance currently and we hope to see it’s adoption spread to replace many older LSU 4.0 and 4.2 applications over time.

The Bosch LSM-11 (SNSR-01015) represents an older generation of wideband technology. This sensor is not technically a modern nernst pump cell wideband but a highly tolerant narrow band used mostly in older applications. This sensor can be difficult to find but we are happy to say that we carry this part in stock and have a $20 price reduction effective immediately.

Connectors by number of positions

August 13th, 2012

We have had consistent requests to organize our connectors by the number of positions. This often simplifies a visual search for connectors on our website across various brands and options.

Due to popular demand, we have added connectors sorted by number of positions, click here to see our new product section. This option is for connector housings only thus far but we plan to add a similar section for connector kits and pigtails.

On a similar point about our connector, connector kit & pigtail organization, we typically offer three options for our connectors. We offer the connector housing only for customers who just want to replace the housing and nothing else. We offer the connector with terminals and seals, which we term a connector kit for assembly directly on your wiring harness. Lastly, we offer the connector as a pigtail, which means the terminals are pre-terminated typically on 12 inch (~300mm) wire leads for splicing into a harness.

New Shorty 80lb/hr Siemens DekaV Injectors & AiM Solo Logger

December 19th, 2011

Customers have been asking for an injector similar to our popular Siemens Deka IV 60 lb/hr Short Style Injectors but with a higher flow rate. The Siemens Deka V 80 lbs/hr Injector meet the demands of a higher flow rate using the short style injector body.

Many customers will already know the 60 lb/hr version of these injectors are hugely popular for their ability to handle higher pressure and flow rates under extreme conditions such as turbo and supercharged applications. Other customers might recognize them for their ability to handle flex fuels such as ethanol while delivering excellent atomization, quick opening times and superb idle quality using existing OEM high impedance drivers.

This new 80 lb/hour version maintains the same properties that have given the 60 lb/hour injectors such a good reputation while increasing flow by 33%. These shorty injectors are also unique from the long style 80lb/hr Siemens injectors because they represent the newer generation DekaV design and a multi-hole, atomized spray pattern.

Take a look at our whole range of High Performance Fuel Injectors -> (click here)

Ballenger Motorsports is also proud to announce the availability of the much anticipated AiM Solo Logger. High-speed GPS, internal accelerometers, expansive data logging memory, USB download, a waterproof design, a thoughtful feature set, and a retail price of $399 make for best motorsports lap timer ever made.

The Solo offers Predictive Lap Times. Arguably the best tool a driver can have for getting faster – predictive lap times. Chisel down those lap times and qualify better than you ever have before with the Solo’s predictive lap timing. A constantly updating real-time display of your current lap pace. A time prediction resolved down to the hundredth of a second – and incredibly accurate. Optionally you can display a real-time +/- from your best lap time.

The Solo records your lap times along with speed, track position, lateral g-forces, linear g-forces, yaw rate, heading, slope, satellite reception, and battery voltage. Each channel recorded at a frequency of 10-times per second (10 Hz). All tests are stored with a time and date stamp for on-screen review or PC download for further analysis. Download your Solo data to the included full version of RaceStudio2, professional data analysis software.

The Solo offers Lap Data Review at Your Fingertips. Hit the Solo’s memory button when your session is over and up pops your best three lap times, along with session data of duration and distance. Hit MEM again and you get a full list of your lap times along with max straight speed and minimum corner speed for each lap. A third data review page shows a histogram view of your lap times where you can identify patterns of driving or the tires coming in – or going away.

Part Identification Guide

March 5th, 2010

We receive hundreds of requests to identify specific parts for automobiles, motorcycles, industrial applications and agricultural applications daily. While we do have expertise in identifying and sourcing parts for our customers, most of the requests we receive don’t have the information we need for identification and sourcing. The purpose of this guide is to drive our requests to a more standardized format so that we can successfully answer more questions with greater efficiency.

What information do we need?
1. How many pieces are you looking for? If the application is ongoing, what is the estimated annual usage? This dictates how the parts are sourced.
2. Do you need ancillary components like terminals, seals, sensor bungs, etc?
3. How quickly do you need the part(s)?
4. What was the original application? If year, make, model, engine & transmission information is available, please mention it. What is the current application?
5. What does the part do and/or what does it connect to?
6. What is the part number? If you are not aware of the part number, please mention any numbers on the part and any symbols (often manufacturer symbols).
7. In many cases, we may need images to identify the part. Most of the images we receive are too poor in focus or lighting to see the details of the parts we are asked to identify. Please see our photo submission guide here.
8. Scaling information. Is the part 1 cm or 1m in length? With terminals, what is the outer diameter of the circular terminal or blade width of the male terminal? What wire size and outer diameter do you plan to use?
9. Associated use information. We receive may pictures or tidbits of information that don’t give us enough data to correlate the part. A good example is someone emailing a partial part number with no other information. Another good example is a blurry image of a terminal or seal with no scale and without the connector housing. There are millions of terminals, many of which look very similar. With no reference information, we can’t assist your search. So please do provide the part number or image of the sensor being connected to, the housing the terminal fits in, etc.
10. Please use a descriptive title in the subject line of your email.

Due to the large volume or requests we receive, we are not able to answer every single request despite working extended hours to try and meet our customers needs. The higher the quality of the information you provide, the better able we are to deliver an expedient and helpful response.

Connector Photo Submission Guide

February 11th, 2010

We receive a very large number of images from customers trying to identify various parts. Often these are small parts and often they are terminals or connectors. Many of these images are out of focus and / or have poor lighting such that we have to ask for improved images. This is often frustrating for customers because the parts are often not easy to access and taking photographs of small items can be difficult without experience.

The quickest way to explain this issue is to say that yes, your inexpensive $100 point and shoot digital camera can take an excellent shot of a part for us to identify. It is not about how much you spend but rather about the technique. A good photographer can take amazing shots on a disposable camera.

Here are our basic steps to take a high quality image on a digital camera:

1. Focus – Set the camera to macro mode (often a flower button) setting.
2. Focus – If the camera won’t focus on the object but chooses objects nearby, change the camera focus setting to center point focus rather than averaged or automatic focus. Then place the part in the center of the field of view.
3. Focus – If you still have trouble after step #1 & 2, you are probably too close to the object. Move the camera away from the object 1 to 3 feet (0.3 to 0.9 m) and crop the image after the picture is downloaded.
4. Some cameras will bounce between chosen focus zones. Steps #1 – 3 above typically help but if they do not solve the problem, keep letting the camera choose zones until you get the desired one. Try different angles, distances, etc.
5. Lighting – Use LOTS of flood or ambient general lighting for your shot and use spot lighting on internal part features. A flashlight is a great tool in a confined space.

The important issues here are focus, focus, focus, focus and lighting. Please send images that are in focus and do not send images that are out of focus. This may seem obvious but we receive MANY images that are out of focus while requiring recognition of small detailed features that are difficult to discern even with a good image.