Howe Y-Pipe 2 into 1 3" to 4in HASZ21LT Shiny and Black

Shiny and Black

1981-1981 Pontiac Firebird

Testing resulted in a peak of 507 horsepower and 487 ft-lbs of torque @ 5 PSI on a 350 CID with 9

150 in Coil Bind

Howe Y-Pipe 2 into 1 3" to 4in HASZ21LT Shiny and BlackProduct Description: Exhaust Y Pipe 3 in Inlets 4 in Outlet Steel Gray Paint Sold Individually Howe Racing Enterprises began building and selling chassis and components in 1971 and since then we have produced countless innovative products and over 4,000 serial numbered chassis worldwide. Howe has dedicated 52 years and three generations to providing superior products for racing. The types and uses of Howe products continually change, but the original