Introducing the much anticipated JHMotorsports 2.75 Inch Cat-Back Exhaust System for the B7-RS4 4.2L FSI 32v V8!!!
Why 2.75 Inch piping diameter? After much research, calculations, testing and development we found that based on the 4.2L 32v V8 engine's demands, 2.75 Inch piping diameter is the optimal size. With a 2.5 inch exhaust you end up choking off the RS4's free spinning and high-revving V8. We have also found with a 2.75 inch cat back that torque is not sacrificed for power gains in the top end of the RPM band.
Why an X-pipe? Naturally Aspirated V8s always make more power with an X-pipe. The location and size of the X-Pipe in the JHM B7-RS4 Cat-Back Exhaust System has been meticulously researched and developed to produce the best scavenging of the exhaust pulses coming from either side of the motor. The location of our X-Pipe also gives the 32-valve V8 motor a cleaner, more refined tone.
JHM B7-RS4 2.75 Inch Exhaust X-Pipe:
JHM B7-RS4 2.75 Inch Exhaust System Build Quality: Our B7-RS4 Exhaust Systems are made entirely of stainless steel and crafted with the utmost attention to detail:
Parts Included: Our complete 2.75 Inch Cat-Back Exhaust System with dual 2.75 inch stainless steel piping includes the following:
- X-Pipe Section (Resonated or Un-resonated)
- 2x free flowing mufflers
- 4x 2.75 Inch Clamps
- 2x Rear Hanger Adjustment Clamps
- 1x Rear Section Adjustment Bar with Hardware
- Resonators: The JHM B7-RS4 2.75 Inch Cat-Back Exhaust System can be purchased with a RESONATED or UN-RESONATED X-Pipe section. Select your desired configuration from the dropdown menu below.
NOTE: If you are planning to use this system with stock downpipes or downpipes with a stock downpipe connection size you will need to purchase our downpipe connection reducers - SEARCH SKU: JHM-B7RS4CBRDCR
NOTE: IF YOU ALSO WANT TO PURCHASE OUR DOWNPIPES SEARCH SKU: JHM-B7RS4-DP
Note about build time and availability: MADE TO ORDER - ETAs can vary
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⚠️CALIFORNIA WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov