Pro-Bullet Oval Race Series Muffler
SpinTechs Pro Bullet Race Muffler has been dyno proven in most cases to increase torque and horsepower. Its internal Venturi design is all steel and has no packing. The Pro Bullet Race will be louder than the original SpinTech design and will only be legal where a "muffler only rule" is in effect, or db levels around 105dbs will be acceptable. Db's will vary due to cubic inches, camshaft profile, compression, and size of exhaust system.
Muffler Body 12" Long