DynoMax Ultra Flo Muffler - 6" Round x 16" - 21" Overall Length - 3-1/2" Inlet, 3-1/2" Outlet Bar Mounts Used by many of the

Used by many of the best Super class racers in the world

Main Stud Kit

strong low rpm performance

Package of 24 shims contains 12 silver 60°

1986-1991 Ford E-250 Econoline

DynoMax Ultra Flo Muffler - 6" Round x 16" - 21" Overall Length - 3-1/2" Inlet, 3-1/2" Outlet Bar Mounts Used by many of theDynoMax(R) Ultra Flo? Welded performance stainless steel mufflers feature 100 percent welded construction for lifelong durability. The unrestricted, straight through design dyno proven to flow up to 2, 000 SCFM and support up to 2, 000 horsepower. Each muffler uses our exclusive Continuous Roving Fiberglass (CRF) Technology to absorb unwanted interior resonance while maintaining a deep performance tone. The "Pure Unadulterated POWER" of DynoMax(R)