Description
Overview
The Flowmaster American Thunder Exhaust System Kit is a crossmember-back, true-dual performance exhaust engineered specifically for high-horsepower, large cubic-inch V8 muscle. Custom designed for 1967-1969 Chevrolet Camaro and Pontiac Firebird applications, this exhaust system pairs mandrel-bent tubing with a legendary Super 40 Series muffler package to deliver a deep, powerful, aggressive tone that matches the character of these classic small-block and big-block engines.
Every part of this exhaust pipe assembly is built for flow and durability. The system uses all mandrel-bent 3.00-inch aluminized steel tubing to maintain smooth, unrestricted airflow, and it incorporates a built-in H-pipe crossover assembly that balances exhaust pulses between the two banks. That flow feeds into a pair of large cased Super 40 Series mufflers (muffler part number 953046) tuned for maximum power and that unmistakable Flowmaster attitude.
Key Benefits
As a true-dual, catback-style crossmember-back performance exhaust, this kit is designed to wake up your engine while delivering an aggressive sound level that turns heads. The large 3.00-inch mandrel-bent tailpipes are custom bent to tuck up high above the rear end and exit with a slight turn-down at the quarter panels behind the rear wheels, giving your muscle car a clean, purposeful stance. Everything installs with reliable U-Bolt clamping hardware.
- Crossmember-back, true-dual exhaust system for 2WD V8 applications
- All mandrel-bent 3.00-inch aluminized steel tubing with a built-in H-pipe crossover
- Dual large cased Super 40 Series mufflers (PN 953046) included for an aggressive exhaust note
- Custom-bent 3.00-inch tailpipes that tuck high and exit at the quarter panels behind the rear wheels
- U-Bolt clamping type with all necessary hardware and hangers included
- CARB (California) compliant, Emission Code 5, Silver pipe finish
Options & What’s Included
This American Thunder kit ships as a complete exhaust system with dual tailpipes and both Super 40 Series mufflers included. Exhaust tips are sold separately, so you can choose the tip style that fits your build. Note that a heat shield is not included with this configuration. The system comes complete with all necessary hardware and hangers, making it a bolt-on solution for enthusiasts shopping for exhaust upgrades that deliver real performance and sound.
Fitment
This Flowmaster exhaust is custom designed for 1967-1969 Chevrolet Camaro and Pontiac Firebird models equipped with V8 engines, including the 307, 326, 327, 350, 396, 400, and 427 cubic-inch options. Built for 2WD applications with a 3.00-inch inlet diameter, it is engineered to fit high cubic-inch and high-horsepower combinations. Backed by a 3-year Limited Warranty.
















