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Flowmaster American Thunder Crossmember-Back Exhaust System for Chevrolet and GMC

Part # 17742

  • Super 44 Series Mufflers for Deep Powerful Sound
  • Mandrel-bent 16-gauge Aluminized Steel Tubing
  • Includes Hangers and Hardware for Installation
  • Aggressive to Moderate Exterior Exhaust Tone
  • Crossmember-Back True Dual Exhaust System
  • H-pipe Crossover for Maximum Power
  • Does Not Include Header Reducers or Downpipes for Factory Manifolds

Description

This American Thunder exhaust system was specially designed for 1973-1974 Chevrolet and GMC C10 and C15 1/2 ton and 3/4 ton 2wd trucks and is perfect for the person looking for moderate to aggressive interior and exterior sound levels. The Crossmember-Back exhaust system comes complete with a built-in H-pipe crossover, all mandrel-bent 2.50-inch aluminized steel tubing, a pair of Super 44 Series performance mufflers and your choice of tailpipe exits. Either dual out rear under the bumper for a muscular look or dual out the sides behind the rear tires for that classic truck look. The system includes all hardware necessary for installation and is designed to accommodate both long and short wheelbases, with either an automatic or manual transmission and provides adequate clearance for substantially lowered vehicles. The exhaust system is covered by our 3-year Limited Warranty. Notes: Does Not include exhaust tips, header reducer cones or downpipes for factory manifolds.

Specifications

CARB (California) CompliantYes
Catalytic Converter IncludedNo
Catalytic Converter Quantity0
Choose Your PartExhaust System
Clamping TypeU-Bolt
Clamps IncludedNo
Drive2WD
Exhaust SeriesAmerican Thunder
Exhaust Tip Quantity0
Exhaust Tip ResonatedNo
Exhaust Tip ShapeRound
Exit StyleDual Out Side
FinishAluminized
Gasket Or Seal IncludedNo
Grade TypePerformance
Hangers IncludedYes
Inlet Diameter2.50 in
Inlet TypeClamp-On
Main Piping Diameter2.50 in
Mount TypeFlanged
Mounting Bracket IncludedNo
Muffler (Left) Body Height4.00 in
Muffler (Left) Body Length13.00 in
Muffler (Left) Body Width9.75 in
Muffler (Left) TypeChambered
Muffler (Right) Body Height4.00 in
Muffler (Right) Body Length13.00 in
UPC / GTIN00700042032341
WarrantyManufacturer's Limited 3 Year Warranty

Fits these vehicles

YearMakeModelSubmodelNote
1973 - 1974ChevroletC10 PickupBaseBig Block Chevy Swap; Aluminized Steel Material; Hemi Swap Gen III; Aluminized Steel Material; LS Swap; Aluminized Steel Material; LT Swap; Aluminized Steel Material; Small Block Chevy Swap; Aluminized Steel Material; Aluminized Steel Material
1973 - 1974ChevroletC20 PickupBaseBig Block Chevy Swap; Aluminized Steel Material; Hemi Swap Gen III; Aluminized Steel Material; LS Swap; Aluminized Steel Material; LT Swap; Aluminized Steel Material; Small Block Chevy Swap; Aluminized Steel Material; Aluminized Steel Material
1973 - 1974GMCC15/C1500 PickupBaseBig Block Chevy Swap; Aluminized Steel Material; Hemi Swap Gen III; Aluminized Steel Material; LS Swap; Aluminized Steel Material; LT Swap; Aluminized Steel Material; Small Block Chevy Swap; Aluminized Steel Material; Aluminized Steel Material
1973 - 1974GMCC25/C2500 PickupBaseBig Block Chevy Swap; Aluminized Steel Material; Hemi Swap Gen III; Aluminized Steel Material; LS Swap; Aluminized Steel Material; LT Swap; Aluminized Steel Material; Small Block Chevy Swap; Aluminized Steel Material; Aluminized Steel Material