Flowmaster HP-2 Series " Shorty" Muffler- 2.5" Inlet, 2.5" Outlet - 12" Case - 409S DK14237311FIASFI 16-158 ohm

16-158 ohm

318 in Insert OD

1972-1979 Pontiac Firebird

Self Vulcanizing Tape

Flowmaster HP-2 Series " Shorty" Muffler- 2.5" Inlet, 2.5" Outlet - 12" Case - 409S DK14237311FIASFI 16-158 ohmConstructed with an 12" long, painted 409S outer shell, and 409 Internal components. Available in 2. 00", 2. 25", and 2. 50" inlet outlet sizes. Featuring the same the same technology as the standard HP 2 mufflers, the 409S HP 2 "Shorties" have a shorter case length of 12 inches and a 4. 00 X 5. 50 inch width. Due to their Cool Shell Technology they can be placed in virtually any location under the vehicle. The 409S HP 2 "Shorties" feature a painted