Overview:These Builder Series tailpipes are constructed from 3.00-inch mandrel-bent 16-gauge aluminized steel tubing for maximum flow, tuck up high in the chassis for good clearance and exit straight-out the back under the rear bumper. Designed to be used with Side Inlet/Opposite Side Outlet mufflers such as part# 943048 (Super 44 Series) or 53058 (Super 50 Series) mufflers. Covered by our 3-year Limited Warranty. Note: Not designed to fit in factory bumper cutouts. Some fitment may be necessary. Does Not include installation hardware or exhaust tips.Features:Exits Straight-out under the Rear BumperMandrel-bent for Maximum PerformanceHigh Clearance around Rear DifferentialDesigned for Double Off-set Mufflers16 Gauge Aluminzed Steel TubingDoes Not Include Hardware3-year Limited WarrantySpecs: Brand: Flowmaster Clamps Included: No Color: Gray Emission Code: 5 Exit Position: Dual Rear Exit Exit Position: Dual Rear Exit Exit Style: Dual Rear Exit Finish: Aluminized Fitment: Direct Fit Flanged Inlet: No Grade Type: Performance Inlet Connection: Slip-Fit Inlet Diameter: 3 Inlet Inside Diameter: 3 Inlet Outside Diameter: 3.125 Main Piping Diameter: 3 Material: Aluminized Steel Outlet Connection: Slip-Fit Outlet Diameter: 3 Outlet Inside Diameter: 3 Outlet Outside Diameter: 3.125 Pipe Bend Type: Mandrel System Type: Tailpipe Kit Tube Diameter: 3 Tubing Diameter: 3 Type of Exhaust: Tail Pipe Kit Universal Or Specific Fit: Specific Fit Welded Bracket Quantity: 0 Welded Hanger: No Part Number: 15818Applications: 1970-1972 Buick GS 350 CID 1968-1969 Buick GS 350 350 CID 1968-1969 Buick GS 400 400 CID 1970-1972 Buick GS 455 455 CID 1968-1972 Buick Skylark 350 CID 1968-1968 Buick Skylark 400 CID 1970-1971 Buick Skylark 455 CID 1968-1969 Buick Special 350 CID 1968-1969 Buick Sportwagon 350 CID 1968-1969 Buick Sportwagon 400 CID 1968-1972 Chevrolet Chevelle 307 CID 1968-1969 Chevrolet Chevelle 396 CID 1968-1968 Chevrolet Chevelle 327 CID 1969-1972 Chevrolet Chevelle 350 CID 1970-1972 Chevrolet Chevelle 402 CID 1970-1972 Chevrolet Chevelle 454 CID 1968-1972 Chevrolet El Camino 307 CID 1968-1972 Chevrolet El Camino 350 CID 1968-1970 Chevrolet El Camino 396 CID 1968-1969 Chevrolet El Camino 327 CID 1970-1972 Chevrolet El Camino 402 CID 1970-1972 Chevrolet El Camino 400 CID 1970-1972 Chevrolet El Camino 454 CID 1970-1972 Chevrolet Monte Carlo 350 CID 1970-1972 Chevrolet Monte Carlo 402 CID 1970-1972 Chevrolet Monte Carlo 400 CID 1970-1972 Chevrolet Monte Carlo 454 CID 1971-1972 GMC Sprint 307 CID 1971-1972 GMC Sprint 350 CID 1971-1972 GMC Sprint 402 CID 1971-1972 GMC Sprint 400 CID 1971-1972 GMC Sprint 454 CID 1968-1971 Oldsmobile 442 455 CID 1968-1969 Oldsmobile 442 400 CID 1968-1972 Oldsmobile F85 350 CID 1970-1972 Oldsmobile F85 455 CID 1968-1972 Oldsmobile Cutlass 350 CID 1968-1968 Oldsmobile Cutlass 400 CID 1970-1972 Oldsmobile Cutlass 455 CID 1968-1972 Oldsmobile Cutlass Supreme 350 CID 1971-1972 Oldsmobile Cutlass Supreme 455 CID 1968-1972 Oldsmobile Vista Cruiser 350 CID 1968-1969 Oldsmobile Vista Cruiser 400 CID 1970-1972 Oldsmobile Vista Cruiser 455 CID 1968-1972 Pontiac GTO 400 CID 1970-1972 Pontiac GTO 455 CID 1968-1969 Pontiac Beaumont 307 CID 1968-1969 Pontiac Beaumont 350 CID 1968-1969 Pontiac Beaumont 396 CID 1968-1968 Pontiac Beaumont 327 CID 1968-1972 Pontiac Grand Prix 400 CID 1968-1969 Pontiac Grand Prix 428 CID 1970-1972 Pontiac Grand Prix 455 CID 1968-1972 Pontiac LeMans 350 CID 1968-1972 Pontiac LeMans 400 CID 1970-1972 Pontiac LeMans 455 CID 1968-1970 Pontiac Tempest 350 CID 1968-1970 Pontiac Tempest 400 CID Emissions: This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.