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Header-back System 409S - Dual Rear Exit - American Thunder- Moderate/Aggressive | 37A817139
Header-back System 409S - Dual Rear Exit - American Thunder- Moderate/Aggressive | 37A817139

Flowmaster

Header-back System 409S - Dual Rear Exit - American Thunder- Moderate/Aggressive | 37A817139

Part #37A817139
$1,449.94

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This American Thunder® exhaust system comes as a complete true dual crossmember-back exhaust for your 1969 Chevrolet Camaro or Pontiac Firebird with V8 engine. These dual systems feature 2.50-inch mandrel-bent stainless steel tubing for maximum performance, includes a built-in H-pipe/balance tube flowing into a pair of Super 44® mufflers that deliver a moderate to aggressive interior and exterior tone and are suited to the enthusiast who wants their performance to be heard. The 2.50-inch tailpipes exit straight out under the rear bumper and are finished off with 2.50-inch angle-cut brushed stainless steel tips and includes all hangers and necessary hardware for installation. Like all Flowmaster® systems, the benefits include improved throttle response, power and mileage and is covered by our Lifetime Limited Warranty. To fit Convertible models without modification to the factory X-brace. You will need to shim the brace with 3/8-inch of spacers, or replace the factory X-brace with Hotchkis Suspension part# 1404 X-brace.
  • Stainless Steel Exhaust Tips Exit in the Factory Location
  • H-pipe Crossover for Maximum Power and Deep Tone
  • Super 44 Series Mufflers for Deep Powerful Sound
  • Includes Hangers and Hardware for Installation
  • Mandrel-bent 16-gauge Stainless Steel Tubing
  • Moderate to Aggressive Exterior Exhaust Tone
  • Crossmember-Back True Dual Exhaust System
  • Does Not Include Header Reducers or Factory Manifold Downpipes
  • Lifetime Limited Warranty
  • Mandrel bent 16 gauge stainless steel tubing
  • Moderate to Aggressive Sound Exterior Exhaust Tone
  • Includes hangers and hardware for easy installation
  • Header-back System
Details
BrandFlowmaster
Product Dimensions 41.66 x 39.62 x 134.62 inches
Manufacturer Part Number817139
Vehicle Fitment

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