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Flowmaster U-Fit Dual Exhaust Kit

16 pc. Universal Dual Exhaust Tubing Kit - 3.00-inch Mandrel-bent Aluminized Steel Tubing.

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Looking for a great way to help create that custom exhaust system, but want the durability of Aluminized steel as well? Flowmaster's U-Fit Dual kit is a universal package that contains enough components to fabricate a complete mandrel bent dual exhaust system on nearly any street rod, muscle car or pickup. The slip-fit kit contains twelve pieces of 3.00-inch diameter tubing in carefully selected bend configurations and four additional 2.00-inch diameter components for a crossover pipe fabrication so you can create a custom tailored system for your demanding vehicle project. Constructed from durable 16 gauge Aluminized steel, it delivers the type of durability builders have longed for.


  • Mandrel-bent 16 Gauge Aluminized Steel Tubing
  • Front Adapter Pipes/Intermediate Pipes/H-pipe
  • Over the Axle Pipe with Optional Tailpipe Exits
  • Slip-fit Connectors for Easy Assembly
  • Flowmaster Quality

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
Emission Code3
Exhaust Pipe Wall Maximum Gauge16
MaterialAluminized Steel
Mount TypeUses New Hangers (Not Included)
Product TypeExhaust Accessories
System TypePipe Kit
Tip Diameter (in)3
Tip ShapeRound
Tip StyleStraight Cut
Tubing Diameter (in)3
California Proposition 65 RequiredNo
Part Number15937

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
Universal Item - Not a direct fit. Some adaptation required. Muffler and hardware not included.

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    Some parts are not legal for use in California or other states with similar regulations.