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

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.

Includes: 

-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)

Requirements:

-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.

Recommended:

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.

Installation:

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