JHM B7 RS4 2.75" Cat back Exhaust C7 running 10

running 10

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high-ethanol blends

JHM B7 RS4 2.75" Cat back Exhaust C7 running 10Introducing the much anticipated JHMotorsports 2. 75 Inch Cat Back Exhaust System for the B7 RS4 4. 2L FSI 32v V8!!! Click to enlarge picture Click to enlarge picture Click to enlarge picture Click to enlarge picture Click to enlarge picture Click to enlarge picture Click to enlarge picture Click to enlarge picture Why 2. 75 Inch piping diameter? After much research, calculations, testing and development we found that based on the 4. 2L 32v V8