40 Delta Flow® - 2.00 Offset In / 2.00 Center Out - Aggressive Sound 1998-pontiac-firebird-esi4271216 and track testing gives you

and track testing gives you the best combination of parts for remarkable traction and launch consistency on the street and track

The patented Berserker Series is designed for high-performance street/track use and is available in various compression and rebound use/vehicle-specific valving

BMRs AWK001s upper bushing lockout rings capture the bushing sleeves

Their weights when bolted to "0" or neutral balanced McLeod flywheels turn them into a externally balanced application

BMW 07 51 0 037 633

40 Delta Flow® - 2.00 Offset In / 2.00 Center Out - Aggressive Sound 1998-pontiac-firebird-esi4271216 and track testing gives youThis 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.