Pypes 3" Universal Tunnel X-Pipe 11504 Carb recommendations: Edelbrock AVS2 or

Carb recommendations: Edelbrock AVS2 or Performer Series 650-800 cfm

1976-1987 Pontiac Grand Prix

higher valve spring pressures and higher engine rpm

1965-1981 Chevrolet Impala

Pypes 3" Universal Tunnel X-Pipe 11504 Carb recommendations: Edelbrock AVS2 orProduct Description: Exhaust X Pipe Tunnel Crossover 3 in Diameter Stainless Natural Universal Sold Individually Pypes Performance Exhaust supplies complete mandrel bent, performance exhaust systems for American performance vehicles ranging from the 1950s to the present day. One of the principal ways of getting a lot of bang for your performance buck is to replace your cars compression bent exhaust system with a mandrel bent system. The simple fact is