Description
Overview
The Flowmaster 80 Series Chambered Muffler brings unmistakable, aggressive muscle car attitude to your exhaust system. Built as a cross-flow design, the 80 Series is engineered for applications where the muffler is mounted transversely behind the rear end. Its inlet sits next to one of the outlets on the same side of the case, making it ideal for late model muscle car builds that demand both bold sound and clean packaging.
As part of the 80 Series Crossflow family, this muffler is tuned to deliver an aggressive tone you’ll feel and hear — inside the cabin and outside the vehicle. Whether you’re chasing a deep, throaty idle or a commanding roar under throttle, the chambered construction is designed to make your engine’s character heard.
Built to Last
Durability is engineered into every seam. The 80 Series is constructed of 16 gauge aluminized steel and fully MIG welded, giving it the strength to stand up to the heat, vibration, and abuse of hard driving. A high-temperature paint finish helps protect the case against the elements and the intense heat exhaust systems endure, so it holds up mile after mile.
Key Benefits
- Cross-flow chambered design purpose-built for transverse mounting behind the rear end
- Aggressive muscle car sound tuned for impact inside and outside the vehicle
- 16 gauge aluminized steel body, fully MIG welded for maximum durability
- High-temperature paint finish for added heat and corrosion resistance
- 3.00-inch inlet with dual outlet configuration
- Universal fitment for flexible, custom exhaust builds
Fitment & Configuration
This muffler features a 3.00-inch inlet diameter and a dual outlet location, with the inlet positioned next to one of the outlets on the same side of the case — a layout specifically suited to cross-flow, transverse installations. Its universal design gives fabricators and enthusiasts the flexibility to integrate it into a wide range of late model muscle car exhaust systems. The muffler carries an Emission Code of 5.
Mounting uses new hangers, which are not included, so plan your installation accordingly. Exhaust tips are sold separately, letting you finish the system with the look you prefer. For the cleanest, most reliable results, professional installation and proper fabrication are recommended to match the muffler’s cross-flow orientation to your vehicle.
Why the 80 Series
For builders who want a serious, aggressive exhaust note backed by rugged, fully welded construction, the Flowmaster 80 Series Chambered Muffler is a proven choice. Its combination of cross-flow chambered performance, heavy 16 gauge aluminized steel, and universal adaptability makes it a smart foundation for a muscle car exhaust that both looks purposeful and sounds the part.
