This mandrel-bent crossmember-back exhaust system is custom designed for most 1964-1972 GM A-body cars and is perfect for the person looking for true dual exhaust system. This system comes complete minus the mufflers and allows you to choose the sound level of the Flowmaster performance mufflers you desire for your vehicle. System features include all mandrel-bent 2.50-inch aluminized steel tubing, an H-pipe to equalize the exhaust gas pressures and sound for maximum performance and maximum clearance and includes two styles of tailpipe exits. Designed for an easy fit, these systems include all necessary parts, hardware, and instructions for an easy installation. Covered by our 3-year Limited Warranty. Notes: Requires 2.50-inch Offset Inlet/Opposite side Offset Outlet such as part# 942548 (Super 44 Series) or 52558 (50 Series) mufflers.Specifications: Description_DES Header-Back Pipe Kit Description_EXT Header-Back Pipe Kit; Dual; Dual Rear Exit; Incl. 2.5 in. Tubing From Trans X-Member Back/H-Pipe/Hardware; Requires Offset/Offset Mufflers; Description_FAB 2.5 in. Tubing Only Description_FAB No Mufflers In Pipe Kit Description_FAB Transmission Cross-Member Back Description_FAB Dual Out Rear Exit Description_FAB Premium Flowmaster Quality Description_FAB 3 Year Limited Warranty Description_MKT This mandrel-bent crossmember-back exhaust system is custom designed for most 1964-1972 GM A-body cars and is perfect for the person looking for true dual exhaust system. This system comes complete minus the mufflers and allows you to choose the sound level of the Flowmaster performance mufflers you desire for your vehicle. System features include all mandrel-bent 2.50-inch aluminized steel tubing, an H-pipe to equalize the exhaust gas pressures and sound for maximum performance and maximum clearance and includes two styles of tailpipe exits. Designed for an easy fit, these systems include all necessary parts, hardware, and instructions for an easy installation. Covered by our 3-year Limited Warranty. Notes: Requires 2.50-inch Offset Inlet/Opposite side Offset Outlet such as part# 942548 (Super 44 Series) or 52558 (50 Series) mufflers. Description_SHO Exhaust System Kit This Part Fits: Year Make Model Submodel Notes 1965 Buick Gran Sport 1966 Buick Gran Sport 1970 Buick GS 1971 Buick GS 1972 Buick GS 1968 Buick GS 350 1969 Buick GS 350 1968 Buick GS 400 1969 Buick GS 400 1970 Buick GS 455 1971 Buick GS 455 1972 Buick GS 455 1968 Buick Special 1969 Buick Special 1965 Oldsmobile 442 1966 Oldsmobile 442 1967 Oldsmobile 442 1968 Oldsmobile 442 1969 Oldsmobile 442 1970 Oldsmobile 442 1971 Oldsmobile 442 1964 Oldsmobile Cutlass Base 1965 Oldsmobile Cutlass Base 1968 Oldsmobile Cutlass Supreme 1969 Oldsmobile Cutlass Supreme 1970 Oldsmobile Cutlass Supreme 1971 Oldsmobile Cutlass Supreme 1964 Pontiac GTO 1965 Pontiac GTO 1966 Pontiac GTO 1967 Pontiac GTO 1968 Pontiac GTO 1969 Pontiac GTO 1970 Pontiac GTO