Flowmaster 817139 - Header-back System 409S - Dual Rear Exit - American Thunder- Moderate/Aggressive

Flowmaster 817139 - Header-back System 409S - Dual Rear Exit - American Thunder- Moderate/Aggressive

Flowmaster American Thunder Crossmember-Back Exhaust System

American Thunder Header Back Exhaust System; Dual; Dual Rear Exit; Incl. 2.5 in. Tubing/Super 44 Series™ Mufflers/H-Pipe/Hardware; 409 Stainless Steel;

This American Thunder(R) 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(R) 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(R) 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.

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