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817174 - Flowmaster American Thunder Header-back Exhaust System - default Image
817174 - Flowmaster American Thunder Header-back Exhaust System - additional Image
817174 - Flowmaster American Thunder Header-back Exhaust System - additional Image

Flowmaster American Thunder Header-back Exhaust System

1955 -1957 Chevrolet with V8 engine. Does not fit convertibles or wagons.

PART# 817174

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Fits 1955 -1957 Chevrolet with V8 engine, does not fit convertibles or wagons.

Overview

For the person who is looking for a complete Header-back dual exhaust system, these systems are mandrel bent for maximum performance and include specially selected mufflers. This American Thunder systems delivers a moderate to aggressive interior and exterior tone and is suited to the enthusiast who wants their performance to be heard. 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. Constructed out of 409S stainless steel and carrying out limited life time warranty.

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
  • Header-back True Dual Exhaust System
  • Does Not Include Header Reducers
  • Lifetime Limited Warranty

Specs

2WD/4WD2WD
BrandFlowmaster
California Proposition 65 Chemical NameChromium (hexavalent compounds)
Nickel (Metallic)
California Proposition 65 RequiredYes
Emission Code5
Exhaust SeriesAmerican Thunder
Exit PositionDual Rear Exit
Heat ShieldNo
Inlet Diameter (in)2.5
MaterialStainless Steel
Muffler Part NumberKit Only
Muffler Quantity2
Muffler SeriesSuper 40 Series
Outlet Diameter (in)2.5
Product TypeExhaust Systems / Kits
Single DualDual
Sound LevelModerate/Aggressive Sound
System TypeHeader-back System
Tip Diameter (in)3
Tip Quantity2
Tubing Diameter (in)2.5
Part Number817174

Emissions

This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.

Tech Resources

Fits 1955 -1957 Chevrolet with V8 engine, does not fit convertibles or wagons.

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