Fits 1955 - 1957 Chevrolet Full Size 2-1/2" X-System Exhaust System 63123 exhaust-flex-pipe 6L V8 1966 Dodge Polara

6L V8 1966 Dodge Polara Base 273/4

7L V8 1987-1997 Pontiac Firebird Trans Am 350/5

7L V8 2006 Chevrolet Silverado 3500 HD 350/5

8 V8 1969 Ford Falcon Futura 170/2

6 V8 1975 - 1976 GMC G25 Rally STX 350/5

Fits 1955 - 1957 Chevrolet Full Size 2-1/2" X-System Exhaust System 63123 exhaust-flex-pipe 6L V8 1966 Dodge Polara1955 1957 Chevy X style Exhaust system, 2. 5" small block 350 with 2 1 2" ram's horn manifolds. Without Frame Horns. Fits sedan and hardtop only. Comes with quickflow mufflers. Quickflow mufflers come in steel only. Application: Year Make Model 1955 1957 Chevrolet Bel Air 1955 1957 Chevrolet Nomad 1955 1957 Chevrolet One Fifty Series 1955 1957 Chevrolet Two Ten Series