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Flowmaster American Thunder Crossmember-back Exhaust System

1965-1968 Chevrolet Impala, Caprice coupes, wagons and convertibles with V8 engine.

PART# 17655-FM

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Fits 1965-1968 Chevrolet Impala, Caprice coupes, wagons and convertibles with V8 engine. Due to possible differences in the frame design during these years, modification of the muffler frame hangers may be needed.

Overview

The American Thunder Cross-member back exhaust system for 1965-1968 Chevrolet Impala and Caprice is perfect for the person looking for a moderate to aggressive sound level inside and outside of the car, with all of the performance benefits that you would expect from Flowmaster. This bolt-on exhaust system features mandrel-bent 2.50-inch aluminized steel tubing with a built-in H-pipe crossover, a pair of Super 40 Series mufflers and dual 2.50-inch mandrel bent tailpipes. The system is finished off with a pair of polished oval stainless steel tips. The system is covered by our 3-year Limited Warranty and is designed for an easy fit. The system includes all necessary parts and hardware for installation. Note: Fits coupes, wagons, and convertibles. Big Block cars, use Flowmaster# 81075 manifold down-pipe kit to connect to factory manifolds. The system does Not include header reducer cones.

Features:

  • H-pipe Crossover for Maximum Power and Deep Tone
  • Super 40 Series Mufflers for Deep Powerful Sound
  • Includes Large Polished Stainless Steel Oval Tips
  • Mandrel-bent 16-gauge Aluminized Steel Tubing
  • Includes Hangers and Hardware for Installation
  • Moderate to Aggressive Exterior Exhaust Tone
  • Header-back True Dual Exhaust System
  • Does Not Include Header Reducers

Specs

2WD/4WDRWD
BrandFlowmaster
California Proposition 65 Chemical NameChromium (hexavalent compounds)
Nickel (Metallic)
California Proposition 65 RequiredYes
Catalytic Converter IncludedNo
ColorBlack
Emission Code3
Exhaust SeriesAmerican Thunder
Exit PositionDual Out Rear
Heat ShieldNo
Inlet Diameter (in)2.5
MaterialAluminized Steel
Mount TypeFlanged
Muffler Part NumberKit Only
Muffler Quantity2
Muffler SeriesSuper 40 Series
Muffler TypeWelded Baffle
Outlet Diameter (in)2.5
Product TypeExhaust System
ShapeOval
Single DualDual
System TypeCrossmember-back
Part Number17655-FM

Emissions

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

Tech Resources

Fits 1965-1968 Chevrolet Impala, Caprice coupes, wagons and convertibles with V8 engine. Due to possible differences in the frame design during these years, modification of the muffler frame hangers may be needed.

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

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