40 Delta Flow® - 2.00 Offset In / 2.00 Offset Out - Aggressive Sound 1983-pontiac-firebird-esi2278290 adjustable frame braces

adjustable frame braces

GT40 / GTX40 90mm O

premium ball joints and polyurethane bump stops

or BBC engines featuring aluminum heads/intake will maintain a level stance

The kit is designed to fit factory rear end housings and can be returned to stock if needed

40 Delta Flow® - 2.00 Offset In / 2.00 Offset Out - Aggressive Sound 1983-pontiac-firebird-esi2278290 adjustable frame bracesThis two chamber design incorporates Flowmaster's Delta Flow technology. The Delta deflectors generate increased scavenging for better performance and reduced interior sound. Milder exterior tone and reduced interior resonance over standard 40 series. Constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability.