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JHM Supercharger Kit for B6-B7 S4 and C5 allroad 40v, Stage 1+ Upgrade with complete air to water intercooler - requires battery relocation kit



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This kit will give you the ultimate performance from your B6-B7 S4 or C5 allroad 4.2l 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 similar boost. This allows for more consistent power in hotter weather and more power in colder weather. We have been running this kit since 2012 on stock engines and have found this is far as you want to go with stock rods on the stock engine. Customers of ours and the JHM team have ran high 11 second quarter miles in the 116 to 119mph range.


Unfortunately with stock rods you cannot make more power without bending rods in a short period of time but this kit has most of what you need for big power. For those with a built engine with better rods and pistons (limit of stock engine) we have fueling kits with injectors, software, smaller pulleys, larger maf and misc hardware that we have gone as fast as 11.0 in the quarter mile at over 130mph.  Inquire for details for fueling kits and software to add onto this kit if you have a built motor.




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

-Larger aluminum dual diverter inlet with hoses

-Boost hoses for intercooler

-Two diverters and hoses which was required for higher boost with the full fueling kit cars and better light throttle drive ability

-Heat Exchanger and all hardware

-Heat Exchanger Pump, wiring and hoses

-Heat Exchanger Tank (to be mounted where the factory battery is located, NOTE: This is why you need a battery relocation kit, JHM sells two options for this)



-JHM Stage 1 supercharger kit



Images of the install so you can install this kit once your Stage 1 kit is installed. HERE NOTE: This is a RS4 kit install which is almost identical except that you will not be changing pulleys or belts or installing HPFP kits.



This product fits the following vehicles:
Make Model Chassis Engine
Audi S4 B6 (2003-2005) 4.2l V8 40v
Audi S4 B7 (2005.5-2009) 4.2l V8 40v
Audi allroad C5 (2001-2005) 4.2l V8 40v
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You're reviewing: JHM Supercharger Kit for B6-B7 S4 and C5 allroad 40v, Stage 1+ Upgrade with complete air to water intercooler - requires battery relocation kit
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

Hello, i have installed the Supercharger Kit in my Audi S4. The engine ist completely built for Higher Performance. From how much psi of the Supercharger should definitely Install this water cooler Kit?
Best regards
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