Pro Series Muffler - 3.00 Center In / 3.50 Center Turn Down Out -Moderate Sound GM Avalanche/Escalade/Sierra/Sierra Limited/Silverado/Silverado LD our Strut Kit is backed

our Strut Kit is backed by a 3-year manufacturer's warranty

1/2 Suction Tube Port

and less current is more

Steel Torrington Needle bearings replace plastic thrust washers

Hot Tranmission oil has to be Cooled to keep you on the track

Pro Series Muffler - 3.00 Center In / 3.50 Center Turn Down Out -Moderate Sound GM Avalanche/Escalade/Sierra/Sierra Limited/Silverado/Silverado LD our Strut Kit is backedThe 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 performance that is equal to or surpasses open pipe systems, while dramatically reducing sound levels across the RPM range.