4" Down Pipe. Only works with HX40 Turbo 1992-pontiac-firebird-esi4307584 Every BBK Performance H pipe

Every BBK Performance H pipe is designed as a direct replacement for the factory pipe and features larger diameter 16 gauge 2-1/2" CNC mandrel bent aluminized steel tubing (with H crossover) and high flow catalytic converters to help increase exhaust flow and maximize performance to the rear wheels

Our Union Sleeves are available in black only

50-inch polished 304 stainless steel tips for that show car look

Give your Big Block MOPAR some love with this factory replacement heavy gauge steel timing chain cover

oil thermostats

4" Down Pipe. Only works with HX40 Turbo 1992-pontiac-firebird-esi4307584 Every BBK Performance H pipeMBRP Exhaust 4" Down Pipe for HX40 Turbo.