Manley Valve - Exhaust, Valve-E/D 1.940,+.100 2001 Pontiac Firebird Compatible with reformulated fuels

Compatible with reformulated fuels

Each offer improved thermal stability

We also tie in the vertical portion of the wheel tubs to further increase mounting strength

They are also height adjustable

nearly eliminating differential movement by filling the space in the factory bushings

Manley Valve - Exhaust, Valve-E/D 1.940,+.100 2001 Pontiac Firebird Compatible with reformulated fuelsDiscover the extraordinary capabilities of Manley Performance Products' Extreme Duty Series Valves. Engineered to cater to the demanding needs of Top Fuel and Funny Car drag racers, Big Block Chevy marine enthusiasts, and Small Block Chevy restricted carburetor circle track competitors, these valves are your ticket to unparalleled performance.