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Supplier details checked 2026-09-23 · Test catalog
Fits 1969 Chevrolet Camaro & Pontiac Firebird with V8 engine. 2.50 inch Stainless Steel - Aggressive to moderate sound
Flowmaster American Thunder Crossmember-Back Exhaust System
Does Not Include Header Reducers or Factory Manifold Downpipes
Stainless Steel Exhaust Tips Exit in the Factory Location
Super 44 Series Mufflers for Deep Powerful Sound
H-pipe Crossover for Maximum Power and Deep Tone
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
Lifetime Limited Warranty
Convertible models require an aftermarket X-brace like Hotchkis Performance part 1404 or 3/8-inch shims to stock X-brace for clearance.
Flowmaster 1969 GM F-BODY 2.5in. SS American Thunder Crossmember-Back Exhaust System
1969 GM FBODY 25 AMT KIT 409S
SYS 1969 GM F-BODY 2
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.
SYS 1969 GM
