Pro Series Outlaw Race Muffler - 3.5"/3.5" TOPS Our Nitrogen charged

Our Nitrogen charged

Thread length increased to accommodate washer thickness

or break-down over time

the Screamer Stage 1 delivers up to 66lb/min of increased airflow without compromising on low end response and everything you require is included to drop right in place of the old unit

For use on pickup style trucks only - for cab & chassis verify your pump P/N to the cross-reference table

Pro Series Outlaw Race Muffler - 3.5"/3.5" TOPS Our Nitrogen chargedTo address the increasing number of tracks around the country that are coming under pressure to regulate sound emissions, the Flowmaster Engineering team went to the drawing board with three goals; Maximum power, Maximum decibel reduction and Minimal weight. This exciting new line of race mufflers is the result of literally decades of Flowmaster involvement in the racing industry and were truly born at the track! Suited to all forms of motorsports