Vibrant STREETPOWER Round Muffler, 4" Inlet/Outlet (Center-Center) - 1139 Subaru Impreza 3000806 is a street rigid

3000806 is a street rigid disc featuring premium organic materials with high copper content for better heat transfer and steel-backed lining for greater burst strength and durability

And more recently

Peak HP: +11

Optional 1/4" nickel plated fittings are also available separately

Advanced Drawn Cup Construction (exception XC052304: Tube and Fin Construction)

Vibrant STREETPOWER Round Muffler, 4" Inlet/Outlet (Center-Center) - 1139 Subaru Impreza 3000806 is a street rigidMuffler OD: 7. 000" Body Length: 18. 000" Overall Length: 22. 000" Vibrant Performance StreetPower Universal Mufflers offer a perfect balance of providing unrestricted exhaust flow thanks to Vibrant's signature "True Straight Through" while effectively controlling exhaust tone and drone due to the dense, multi layer sound suppression materials packed into each of these mufflers. All StreetPower Universal Mufflers feature PREMIUM 304 Stainless Steel