Exhaust Kit Fits Select 1964-1972 GM A-Body Models Buick Chevrolet GMC Oldsmobile Pontiac See Fitment for all Applications Without Mufflers Dual Rear Exit Aluminized Steel JEGS 555-30541 Header-Back Dual Exhaust Kit Features: Fits Select 1964-1972 GM A-Body Models Utilizes offset ...Exhaust Kit Fits Select 1964-1972 GM A-Body Models Buick Chevrolet GMC Oldsmobile Pontiac See Fitment for all Applications Without Mufflers Dual Rear Exit Aluminized Steel JEGS 555-30541 Header-Back Dual Exhaust Kit Features: Fits Select 1964-1972 GM A-Body Models Utilizes offset inlet/offset outlet (opposite) mufflers with a 13-14 in. body length, available separately 2 1/2 in.O.D. (outside diameter) pipe size for most street and mile race applications Includes pipes, clamps, hangers, and flanges to make installation easy JEGS 555-30541 Header-Back Dual Exhaust Kit Notes: Due to variations in ride height and suspension setup, some cutting and welding may be required Requires Offset In/Offset Out, 13-14 in.
Length Muffler Not Included. JEGS 555-30541 Header-Back Dual Exhaust Kit Applications: 1965-1972 Buick Skylark/GS 1964-1972 Chevrolet Chevelle/Malibu/El Camino 1970-1972 Chevrolet Monte Carlo 1971-1972 GMC Sprint 1965-1972 Oldsmobile Cutlass/442/F85 1966-1972 Pontiac LeMans/Tempest/GTO 1969-1972 Pontiac Grand Prix Do you lose horsepower with dual exhaust? No, dual exhaust typically enhances horsepower by improving exhaust flow. How much does dual exhaust increase horsepower? Dual exhaust can provide a noticeable power boost, but the exact increase varies.
What does adding dual exhaust do? Adding dual exhaust enhances engine performance by optimizing exhaust gas removal. What is considered a true dual exhaust? A true dual exhaust system has separate pipes for each exhaust bank, maximizing efficiency. CLICK THIS LINK FOR IMPORTANT CARB & EPA EMISSIONS INFORMATION ABOUT THIS PART