Description
Overview
The Flowmaster 80 Series Chambered Muffler is a cross-flow muffler engineered for applications where the muffler is mounted transversely behind the rear end. Its unique 80 Series Crossflow design places an inlet and an outlet on each end of the muffler, routing exhaust gases across the housing for the deep, aggressive muscle car tone Flowmaster is known for. If you’re chasing a bold, unmistakable exhaust note both inside and outside the vehicle, this chambered muffler delivers.
Built to take the heat and the miles, the 80 Series is constructed of durable 16 gauge aluminized steel and fully MIG welded for maximum strength and long-term durability. A high-temperature paint finish helps the muffler stand up to the demanding thermal environment of a performance exhaust system.
Aggressive Muscle Car Sound
This muffler is tuned to produce an aggressive sound level that comes through loud and clear at idle and under throttle. It’s an excellent replacement for late-model muscle cars — particularly Camaros and Firebirds — that use a transverse, cross-flow muffler configuration. The 2.50-inch inlet diameter, dual inlet location, and dual outlet location make it a natural fit for these transverse setups.
Key Highlights
- 80 Series Crossflow, chambered cross-flow design for transversely mounted applications behind the rear end
- Inlet and outlet on each end of the muffler for proper cross-flow routing
- 16 gauge aluminized steel construction, fully MIG welded for maximum durability
- High-temperature paint finish for heat resistance
- 2.50-inch inlet diameter with dual inlet and dual outlet locations
- Aggressive muscle car sound inside and outside the vehicle
Fitment & Installation
This is a universal-fit muffler ideally suited to late-model muscle cars running a transverse muffler layout, making it a strong replacement choice for Camaros and Firebirds with cross-flow mufflers. Because it mounts transversely behind the rear end, verify that the cross-flow orientation and 2.50-inch inlet dimensions match your existing exhaust configuration before installing.
Installation uses new hangers, which are not included, so plan to source the appropriate mounting hardware for your build. Exhaust tips are sold separately, giving you the freedom to finish the system exactly the way you want it. Whether you’re restoring factory sound character or upgrading to a more aggressive note, the 80 Series lets you build the exhaust setup that fits your goals.
Please note this product carries a California Proposition 65 warning and is assigned Emission Code 5. Confirm compliance with your local and state regulations before purchase and installation.
