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What's New

FUNK Switch or Button Conversion Harness and Module Assembly (JHM) for B7-B7 A4-S4

Rear Rotors(pair)-JHM 2-piece Lightweight for S6 V10

JHM Cleaned, Flowed and Resealed injectors (set of 8) for B7-RS4 and R8 w 4.2L FSI V8


JH Motorsports is pleased to now offer Cleaned, Flowed, and Resealed injectors for the 4.2L FSI!

Due to the continuously increasing amount of failing injectors that we are seeing, we decided it was necessary for us to get in front of this issue to be able to supply you with good injectors without having to pay the price of OEM Injectors. We recommend injector replacement as early as 80K miles based on data we have seen over the past years. It is wise to replace your injectors as they get older as failing to do so can lead to the destruction of your engine. When a failed (leaking) injector happens, it will end up taking out the entire cylinder, requiring a new engine.

The cleaned and flowed injectors you will receive go through rigorous cleaning and testing so they will run as good as a new set and much better than a used set. We have flowed and installed dozens of sets BEFORE cleaning at 1000 and 1700 psi and have found a consistent pattern of 20% to 30% variation in flow on almost every set BEFORE cleaning. We have flowed new injectors and they are within about 5% +- at best so that is the standard we use since we have yet to have an issue with brand new injectors. After repeated cleaning, testing and flowing we make sure all injectors are within 5% of the each other like we see with new injectors.

Core Charge:

The core charge is $480 ($60 per injector). Injectors will be assessed after they are received and checked for physical damage. We find that 1 in every 4 sets has a leaky injector which only shows up at those high pressures and running them through real world firing tests. 95% of the time we can recover leaky injectors with a tedious process. Since unrecoverable injectors are rare, we will not hold a bad injector against you. You will get your full core back as long as there is no physical damage to the injector or connector (including but not limited to broken off injector lock tab, cracked or damaged connector, gouged up from a pick to remove clips, etc).

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Note: JHM works hard to make all fitment charts as accurate as possible please read the product description to make sure this is correct for your vehicle.
Make Model - Chassis Engine
AudiR8 - Gen 1 (2008-2015)4.2l V8 32v FSI
AudiRS4 - B7 (2006-2009)4.2l V8 32v FSI

Available Options:
This product was added to our catalog on Thursday 20 April, 2017.

Intake Manifold Flap Linkage Arms (034Motorsport) for B7-RS4 4.2L V8 FSI

Spark plug, NGK (OEM) for B7 A4, C6 A6 w 3.2l V6 and B7 RS4, R8 w 4.2l V8 and R8 w 5.2l V10

Belt (Alternator) Continental for B7 RS4

Crank Seal, Front or Crankshaft Seal, LATE (OEM) for B6-B7 S4-RS4, C5-allroad V8, S6-S8 V10

Coolant - Antifreeze (Lifetime) VW-Audi OEM replacement - 1.5 Liter

Transmission Mount (034Motorsport) Density Line for all 6-Speed MT-CVT B6-B7 A4-S4-RS4

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Copyright © 2017 JH Motorsports

JH Motorsports is not affiliated with or endorsed by Audi AG, Audi of America, Volkswagen AG, or Volkswagen of American or any other car company mentioned or whose logos are displayed in these web pages or our store. Audi®, Quattro®, Avant®, A4®, S4®, A6®, RS4®, RS6®, Allroad®, TT®, and Tiptronic® are trademarks of Audi AG. Volkswagen®, VW®, Golf®, Jetta®, Passat® and Beetle® are trademarks of Volkswagen AG. While we try to keep everything current, JH Motorsports is not responsible for errors in pricing on this web site. All prices are in US Dollars.

Some of these modifications and or parts are intended for off-road use only and may violate Federal or your State emissions standards. Also, end user assumes all risk with product performance and installation. JH Motorsports is not responsible for any bodily or mechanical harm, etc. as a result of use or misuse of any products.