Borla XR-1 Sportsman Stainless Muffler - 2-1/2 in Center Inlet / Outlet - 5 in Round Body - 20 in Long 20-OTL-NG-LXL DeatschWerksuses a dual zone approach

DeatschWerksuses a dual zone approach which increases flow where specifically engineered for high pressure

1969-1990 Pontiac Firebird

Synchronizes Exhaust Pulses To Eliminate Firing Order Pressure Differences

It can replace Holley

Busch and NASCAR Truck Series chassis

Borla XR-1 Sportsman Stainless Muffler - 2-1/2 in Center Inlet / Outlet - 5 in Round Body - 20 in Long 20-OTL-NG-LXL DeatschWerksuses a dual zone approachProduct Description: Muffler XR 1 Sportsman 2. 5 in Center Inlet 2. 5 in Center Outlet 15 x 5 in Round Body 20 in Long Stainless Natural Universal Borla Performance Industries is the leader in the design and manufacture of stainless steel performance exhaust. Borla is committed to providing world class exhaust products. The top engine builders in the racing world rely on Borla exhaust for maximum performance. Borla is at the forefront of the movement