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Flowmaster

Flowmaster Header-back Exhaust System

Fits 1968-1972 GM A-body cars with V8 engine.

Part # 1040FM Be the first to write a review
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This mandrel-bent headers-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 3.00-inch aluminized steel tubing, an H-pipe to equalize the exhaust gas pressures and sound for maximum performance and maximum clearance. Designed for an easy fit, these systems covered by our 3-year Limited Warranty. Notes: Requires 3.00-inch Offset Inlet/Opposite side Offset Outlet such as part# 943048 (Super 44 Series) or 53058 (Super 50 Series) mufflers. Does Not Include Header Collector Adapter Cones or hardware. Does Not align with the factory Oldsmobile 442 bumper cutouts. Fabrication required for installation of H-pipe.

Features:

  • Exits Straight-out under the Rear Bumper
  • Mandrel-bent for Maximum Performance
  • High Clearance around Rear Differential
  • Designed for Double Off-set Mufflers
  • 16 Gauge Aluminzed Steel Tubing
  • Does Not Include Hardware
  • 3-year Limited Warranty
  • Includes H-pipe Kit

About Flowmaster

Flowmaster® is a household name, and for good reason. They've built legendary exhaust systems and mufflers for decades, and now offer performance air intakes, catalytic converters, and headers to give your hot rod performance to match the iconic Flowmaster sound.

Automotive Item GradeHigh Performance
Brand Flowmaster
ColorGray
Emission Code3
Exhaust Pipe Wall Maximum Gauge16
Exit PositionDual Rear Exit
MaterialAluminized Steel
Mount TypeUses New Hangers (Not Included)
Product TypeExhaust Accessories
Single DualDual
System TypePipe Kit
Tip Diameter (in)3
Tip ShapeRound
Tip StyleStraight Cut
Tube Diameter3 inch
Tubing Diameter (in)3
Type of ExhaustHeader-Back
UPC700042019106
California Proposition 65 RequiredNo
Part Number1040FM
3

This part is legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles and Racing Use Only Vehicles.

The following vehicles are considered Uncontrolled (Non-Emissions Controlled) Vehicles:

  • 1965 and older U.S. manufactured California Certified vehicles
  • 1967 and older U.S. manufactured Federally Certified vehicles
  • 1967 and older Foreign manufactured vehicle

The following vehicles are considered Racing Use Only Vehicles:

  • Racing Use Only Vehicles are vehicles that are used exclusively for competition and that are not registered and that may never be used on the street

WARNING: It is against the law to install this part on an Emissions Controlled Vehicle

The following vehicles are considered Emissions Controlled Vehicles:

  • 1966 and newer U.S. manufactured California Certified vehicles
  • 1968 and newer U.S. manufactured Federally Certified vehicles
  • 1968 and newer Foreign manufactured vehicle
Fits 1968-1972 GM A-Body with V8 engine. Use Offset Inlet/Offset Outlet Mufflers Only. Fabrication required for installation of H-pipe.
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    Some parts are not legal for use in California or other states with similar regulations.