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JHM Supercharger Kit for B7-RS4, Stage 1+ Upgrade with smaller pulley and complete air to water intercooler



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This kit will give you the ultimate performance from your B7 RS4 with a stock engine with long term proven reliability.

This kit upgrades our stage 1 supercharger kit to a air to water intercooled setup with MUCH colder air and 1 to 3 lbs more boost. We have been running this kit since 2012 on stock engines and have found this is far as you want to go with stock ring end gaps on the stock engine. Customers of ours and the JHM team have ran low 11 second quarter miles in the 123 to 126mph range.

Unfortunately with stock piston ring end gaps even with our low EGT software you cannot make more power without colliding the rings in a short period of time. For those with a built engine with larger ring end gaps at a minimum and ideally better rods and pistons (limit of stock engine) we have smaller pulley combos that we have gone as fast as 10.7 in the quarter mile at over 130mph.  Inquire for details if you have a built motor and want more than this kit can offer or if you already have this kit and are ready for the next step.



-4.5" blower pulley and correct length belt

-JHM custom Vortech intercooler core for highest effeciency in this small compartment

-Larger Air filter

-Larger aluminum dual diverter inlet with hoses

-Boost hoses for intercooler

-Two diverters and hoses which was required for higher boost and better light throttle drive ability

-Heat Exchanger and all hardware

-Heat Exchanger Pump, wiring and hoses

-Heat Exchanger Tank (to be mounted on included factory S4 battery mount where one ECU is, NOTE: This ECU needs to be relocated and wiring harness cleaned up and rearranged withOUT cuttting)



-JHM Stage 1 supercharger kit

-Two upgraded HPFPs or install JHM HPFP Kits, also available on our site. This is required to support this horsepower level.

-FREE OF CHARGE - Flash to our Stage 1+ software for optimal performance and EGTs with this kit. This is included with this kit since you previously purchased our supercharger kit.



JHM 340 LPFP for B7 RS4 and a fresh fuel filter, especially for those wanting to run race gas at times.  The stock LPFP pump unless new may not be sufficient for these fuel levels.  This is also available for purchase on our site.



Images of the install so you can install this kit once your Stage 1 kit is installed. HERE



This product fits the following vehicles:
Make Model Chassis Engine
Audi RS4 B7 (2006-2009) 4.2l V8 32v FSI
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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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