Description

For the person who is looking for a complete Crossmember-Back dual exhaust system for your 1955-1957 Chevy coupes and sedans. This American Thunder® system is manufactured from 2.50-inch mandrel-bent stainless steel for maximum performance and longevity, and includes a built-in H-pipe for a mellow smooth tone eliminating back rap on deceleration. The system includes a pair of Super 40® Series performance mufflers for a deep exterior sound, with a moderate interior tone and dual tailpipes tucked up high for clearance and exit straight out the back under the rear bumper. Like all Flowmaster® systems, the benefits include improved throttle response, power and mileage. Designed for an easy fit, these systems include all necessary parts and hardware for easy installation. Covered by our Lifetime Limited Warranty. Notes: Does Not fit wagons or convertibles.

Features

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

Specifications

2WD/4WD2WD
BrandFlowmaster
California Proposition 65 Chemical NameChromium (hexavalent compounds), Nickel (Metallic)
California Proposition 65 RequiredYes
Catalytic Converter QuantityNot Included
Clamping TypeFlat Band
Clamps IncludedYes
Emission Code5
Exhaust SeriesAmerican Thunder
Exhaust Tip ConnectionClamp-On
Exhaust Tip Diameter3
Exhaust Tip EdgeRolled Edge Angle Cut
Exhaust Tip FinishChrome
Exhaust Tip IntercooledNo
Exhaust Tip Length12
Exhaust Tip MaterialStainless Steel
Exhaust Tip Quantity2
Exhaust Tip ResonatedNo
Exhaust Tip ShapeRound
Exit PositionDual Out Rear
Exit StyleDual Out Rear
FinishNatural
Gasket Or Seal IncludedNo
Grade TypePerformance
Hangers IncludedYes
Heat ShieldNo
Inlet Diameter2.5
Inlet TypeWeld-On
Main Piping Diameter2.50
Main Piping Diameter2-1/2
Material409 Stainless Steel
Mounting Bracket IncludedYes
Muffler (Left) Body Height5
Muffler (Left) Body Length13.5
Muffler (Left) Body Width10
Muffler (Left) TypeChambered
Muffler (Right) Body Height5
Muffler (Right) Body Length13.5
Muffler (Right) Body Width10
Muffler (Right) TypeChambered
Muffler Body Length13.5
Muffler Body Material409 Stainless Steel
Muffler Body ShapeOval
Muffler FinishBlack High-Temperature Paint Finish
Muffler Flanged InletNo
Muffler Flanged OutletNo
Muffler Inlet ConnectionSlip-Fit
Muffler Inlet Inside Diameter2.5
Muffler Inlet Outside Diameter2.63
Muffler Outlet ConnectionSlip-Fit
Muffler Outlet Quantity1
Muffler Part NumberKit Only
Muffler Quantity2
Muffler SeriesSuper 40 Series
Muffler TypeChambered
Outlet Diameter2.5
Pipe MaterialStainless Steel
Product TypeExhaust System
Sale CategoryExhaust
Single DualDual
Sound LevelAggressive / Moderate
Spring Bolt Kit IncludedNo
System TypeCrossmember-back
Tail Pipe Outlet Outside Diameter2.5
Tail Pipe Quantity2
Tail Pipe Tapered OutletNo
Tip Diameter3
Tip Quantity2
Tubing Diameter2.5
TypeCrossmember-back
Valve IncludedNo
Valve TypeNot Included

Compatibility

  • 1955 - 1957 Chevrolet One-Fifty Series Base 4.3
  • 1957 - 1957 Chevrolet One-Fifty Series Base 4.6
  • 1955 - 1957 Chevrolet Two-Ten Series Del Ray 4.3
  • 1955 - 1957 Chevrolet Two-Ten Series Base 4.3
  • 1957 - 1957 Chevrolet Two-Ten Series Base 4.6
  • 1957 - 1957 Chevrolet Two-Ten Series Del Ray 4.6
  • 1955 - 1957 Chevrolet Bel Air Base 4.3
  • 1955 - 1957 Chevrolet Bel Air Nomad 4.3
  • 1955 - 1956 Chevrolet Bel Air Beauville 4.3
  • 1957 - 1957 Chevrolet Bel Air Nomad 4.6
  • 1957 - 1957 Chevrolet Bel Air Base 4.6

For the person who is looking for a complete Crossmember-Back dual exhaust system for your 1955-1957 Chevy coupes and sedans. This American Thunder® system is manufactured from 2.50-inch mandrel-bent stainless steel for maximum performance and longevity, and includes a built-in H-pipe for a mellow smooth tone eliminating back rap on deceleration. The system includes a pair of Super 40® Series performance mufflers for a deep exterior sound, with a moderate interior tone and dual tailpipes tucked up high for clearance and exit straight out the back under the rear bumper. Like all Flowmaster® systems, the benefits include improved throttle response, power and mileage. Designed for an easy fit, these systems include all necessary parts and hardware for easy installation. Covered by our Lifetime Limited Warranty. Notes: Does Not fit wagons or convertibles.

Features

  • H-pipe Crossover for Maximum Power and Deep Tone
  • Super 44 Series Mufflers for Deep Powerful Sound
  • Mandrel-bent 16-gauge Stainless Steel Tubing
  • Includes Hangers and Hardware for Installation
  • Moderate to Aggressive Exterior Exhaust Tone
  • Crossmember-Back True Dual Exhaust System
  • Does Not Include Header Reducers or Downpipes for Factory Manifolds
  • Lifetime Limited Warranty
2WD/4WD2WD
BrandFlowmaster
California Proposition 65 Chemical NameChromium (hexavalent compounds), Nickel (Metallic)
California Proposition 65 RequiredYes
Catalytic Converter QuantityNot Included
Clamping TypeFlat Band
Clamps IncludedYes
Emission Code5
Exhaust SeriesAmerican Thunder
Exhaust Tip ConnectionClamp-On
Exhaust Tip Diameter3
Exhaust Tip EdgeRolled Edge Angle Cut
Exhaust Tip FinishChrome
Exhaust Tip IntercooledNo
Exhaust Tip Length12
Exhaust Tip MaterialStainless Steel
Exhaust Tip Quantity2
Exhaust Tip ResonatedNo
Exhaust Tip ShapeRound
Exit PositionDual Out Rear
Exit StyleDual Out Rear
FinishNatural
Gasket Or Seal IncludedNo
Grade TypePerformance
Hangers IncludedYes
Heat ShieldNo
Inlet Diameter2.5
Inlet TypeWeld-On
Main Piping Diameter2.50
Main Piping Diameter2-1/2
Material409 Stainless Steel
Mounting Bracket IncludedYes
Muffler (Left) Body Height5
Muffler (Left) Body Length13.5
Muffler (Left) Body Width10
Muffler (Left) TypeChambered
Muffler (Right) Body Height5
Muffler (Right) Body Length13.5
Muffler (Right) Body Width10
Muffler (Right) TypeChambered
Muffler Body Length13.5
Muffler Body Material409 Stainless Steel
Muffler Body ShapeOval
Muffler FinishBlack High-Temperature Paint Finish
Muffler Flanged InletNo
Muffler Flanged OutletNo
Muffler Inlet ConnectionSlip-Fit
Muffler Inlet Inside Diameter2.5
Muffler Inlet Outside Diameter2.63
Muffler Outlet ConnectionSlip-Fit
Muffler Outlet Quantity1
Muffler Part NumberKit Only
Muffler Quantity2
Muffler SeriesSuper 40 Series
Muffler TypeChambered
Outlet Diameter2.5
Pipe MaterialStainless Steel
Product TypeExhaust System
Sale CategoryExhaust
Single DualDual
Sound LevelAggressive / Moderate
Spring Bolt Kit IncludedNo
System TypeCrossmember-back
Tail Pipe Outlet Outside Diameter2.5
Tail Pipe Quantity2
Tail Pipe Tapered OutletNo
Tip Diameter3
Tip Quantity2
Tubing Diameter2.5
TypeCrossmember-back
Valve IncludedNo
Valve TypeNot Included
  • 1955 - 1957 Chevrolet One-Fifty Series Base 4.3
  • 1957 - 1957 Chevrolet One-Fifty Series Base 4.6
  • 1955 - 1957 Chevrolet Two-Ten Series Del Ray 4.3
  • 1955 - 1957 Chevrolet Two-Ten Series Base 4.3
  • 1957 - 1957 Chevrolet Two-Ten Series Base 4.6
  • 1957 - 1957 Chevrolet Two-Ten Series Del Ray 4.6
  • 1955 - 1957 Chevrolet Bel Air Base 4.3
  • 1955 - 1957 Chevrolet Bel Air Nomad 4.3
  • 1955 - 1956 Chevrolet Bel Air Beauville 4.3
  • 1957 - 1957 Chevrolet Bel Air Nomad 4.6
  • 1957 - 1957 Chevrolet Bel Air Base 4.6

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