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JHM Tune and Fueling Kit, Stage 3 for JHM RS6-Rs on 2.7T w JHM 90mm MAF and 650cc EV14s - NO AIRBOX



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NOTE: This kit does NOT include the OEM RS4 airbox and our exclusive adapter like our other kit.  It only includes a 4" cone filter adapter for you to use your own cone filter or modify your current intake system to work.

Introducing the JHM Stage 3 RS6-R Tune and Fueling Kit for your B5-S4, C5-A6, and allroad 2.7T from JHMotorsports! This is the same Tune and Fueling Kit that was used in our record setting 10.8 second quarter mile run.  NOTE: See the separate purchase required notes below

Watch this Tune and Fueling Kit in action in the videos below!

This Tune and Fueling Kit for our RS6-R Turbos features all of the parts to get the best performance out of our RS6-R turbos including quick low to mid-range boost response, hammering mid-range power, and very strong top end power.

Our Stage 3 Tune and Fueling Kit Includes the Following Parts:
- JHM Stage 3 Tuning
- 6x 650cc EV14 Injectors with EV1 Style Adapters. These injectors are all STOCK HEIGHT for drop-in fitment. Each set of 6x injectors is balanced and flow matched to within 1% of the other injectors in the set. We use the stock 4 bar Fuel Pressure Regulator on our setup.
- 6x Bosch Tri-Electrode Spark Plugs, Heat Range 5 (2 heat ranges colder than stock for high boost applications)
- 1x OEM B5-RS4 Airbox featuring JHM modifications for increased airflow and optimal throttle response. NOTE: Our B5-RS4 Airboxes come with a stock air filter.
- 1x 90mm Plastic MAF Housing with 4" cone filter adapter to mate to any cone filter of your choice and/or for you to modify your current intake to work with this MAF.



- 1x  Manual Boost Controller - We have manual boost controllers availalable separately or you can source your favorite brand/style

NOTE: Early B5-S4 cars with the Bosch MAF Sensor,  will need to purchase a Hitachi MAF and wiring pigtail to convert the car to Hitachi. purchase SKUS 034-701-0000 and 06C133471A both available on our website.

- 1x Upgraded, High-Flow (300+ lph) Fuel Pump with Adapter for Drop-In Fitment to 2.7T Fuel Pump basket.


NOTE for Exhaust Components: For this tune and fueling kit to perform well, we recommend at least 2.5 inch downpipes paired with at least a 2.5 inch, true-dual, cat-back. For optimal performance of the kit, we recommend 3 inch downpipes going to a single 3.5 inch or 4 inch cat-back. We recommend 034Motorsport's Downpipes and 3.5 inch Cat-Back, both of which can be found on our website.


NOTE for Intercooling Components: For this tune and fueling kit to perform well, we recommend at least having Evolution Racewerks Side Mount Intercoolers (ideally, with carbon fiber shrouds). For optimal performance of this kit, we would recommend our JHM Front Mount Intercooler. Your can find both of these setups on our website.



- B5-S4
- C5-A6 2.7T
- C5-allroad 2.7T




If you already some of the components in this kit, use the dropdown menus below to remove them from our complete fueling kit.


For shipping quotes: Please sign in or join then put the items you want in your shopping cart and proceed to checkout.



This product fits the following vehicles:
Make Model Chassis Engine
Audi S4 B5 (1997-2002) 2.7t V6 30v
Audi RS4 B5 (1999-2001) 2.7t V6 30v
Audi allroad C5 (2001-2005) 2.7t V6 30v
Audi A6 C5 (1998-2004) 2.7t V6 30v
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You're reviewing: JHM Tune and Fueling Kit, Stage 3 for JHM RS6-Rs on 2.7T w JHM 90mm MAF and 650cc EV14s - NO AIRBOX
Off-road Use

By Purchasing any Off-Road use ONLY products from JH Motorsports, Inc. I acknowledge and understand the following disclosure. (This notice is located at the bottom of the page description of affected products on our website.)

Vehicle Code § 27156:
(b) No person shall operate or leave standing upon a highway a motor vehicle that is required to be equipped with a motor vehicle pollution control device under Part 5 (commencing with Section 43000) of Division 26 of the Health and Safety Code or any other certified motor vehicle pollution control device required by any other state law or any rule or regulation adopted pursuant to that law, or required to be equipped with a motor vehicle pollution control device pursuant to the National Emission Standards Act (42 U.S.C. Secs. 7521 to 7550, inclusive) and the standards and regulations adopted pursuant to that federal act, unless the motor vehicle is equipped with the required motor vehicle pollution control device that is correctly installed and in operating condition. No person shall disconnect, modify, or alter any such required device.
(c) No person shall install, sell, offer for sale, or advertise any device, apparatus, or mechanism intended for use with, or as a part of, a required motor vehicle pollution control device or system that alters or modifies the original design or performance of the motor vehicle pollution control device or system.

Health and Safety Code § 43000:
43001. The provisions of this part shall not apply to:
(a) Racing vehicles.

As the aforementioned code sections outline, it is against the law to operate or use a vehicle on public streets or highways with modified, altered, or disconnected motor vehicle pollution control devices. This may include but is not limited to, Evaporative Fuel Controls, Catalysts, DPF, PTOX, PCV Systems, Exhaust Gas Recirculation Systems, Oxygen Sensors, Thermostatic Air Cleaners, Air Intake Systems, Fuel Injectors, Regulators, Adjustable Cam Gears, ECU Programming, Mapping, or other Computer Modifications. Air Pumps, Air Injection, Timing, and any other Emission System Modification(s).

Purchaser acknowledges and certifies to JH Motorsports Inc., that Purchasers vehicle will only be used for racing applications or off road vehicle use only. Purchaser requests these modifications for the purpose of enhancing the vehicle for competitive Racing Applications and will not use this vehicle on public streets or highways. Purchaser agrees to indemnify JH Motorsports Inc., all employees, officers, owners, and subsidiaries for any civil or criminal liability arising out of use of Purchasers vehicle on public streets or highways as Purchaser has been duly notified of the laws and regulations regarding disconnecting, alteration, or modification of a vehicle’s pollution control devices. Purchaser understands and has been advised the driving of a vehicle on public streets or highways could result in criminal or civil penalties.

Prop 65

Warning: This product may contain a chemical known to the State of California to cause cancer, birth defects, or other reproductive harm.

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Q and A

Product Questions

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Which Octane selection do you recommend, with WaterMeth injection on 91 Octane street gas?
If I'm running Stock Rods and Heads, is the MBC set to a particular value to adjust the tune for this set-up? I won't be able to overdo it with the limitation of the Stock rods... Thanks!
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