Pro Series Muffler 20" - 4" Inlet Centered/Outlet Centered Integra Clutch Torque Rating Stage 1

Clutch Torque Rating Stage 1 218 Stage 2 250 Stage 2+ 280

1/8 NPT port included for nitrous pick up or fuel pressure gauge

Engineered to keep the "MIL" light off

CNC machined 6061 grade billet aluminum

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Pro Series Muffler 20" - 4" Inlet Centered/Outlet Centered Integra Clutch Torque Rating Stage 1The Pro Series mufflers work on all applications ranging from street trucks, diesel pullers, and RV pushers to every class of racing on dirt or asphalt. During development, at the dyno and track, the Pro Series mufflers consistently delivered a performance that is equal to or surpasses open pipe systems, while dramatically reducing sound levels across the RPM range. Features: High horsepower apps include diesels RVs trucks Race Proven Design 409