Description
Overview
The Flowmaster Super 40 Series Chambered Muffler delivers the deep, powerful tone that made the 40 Series legendary, now refined with Flowmaster’s Delta Flow® technology. Built around a larger case profile, the Super 40 balances two goals that usually pull against each other: serious exhaust flow for performance and a rich, aggressive sound that turns heads without overwhelming the cabin. If you want your classic muscle car to announce itself with authority, this is the chambered muffler engineered to do it.
At the heart of the Super 40 is Delta Flow® technology, which channels exhaust gases efficiently through the chambered design to reduce interior resonance while preserving that signature deep, throaty note. The result is the best of both worlds — the unmistakable growl of the original 40 Series paired with smoother, more usable performance characteristics.
Built to Last
Durability is not an afterthought here. The Super 40 is constructed from 16 gauge aluminized steel and fully MIG welded for maximum strength, so it can stand up to heat cycles, road miles, and the demands of a hard-running engine. A high-temperature paint finish helps the case shrug off the extreme conditions that come with life beneath the vehicle.
Key Highlights
- Delta Flow® technology for strong performance and reduced interior resonance
- Larger case profile that blends deep, powerful sound with efficient flow
- 16 gauge aluminized steel construction, fully MIG welded for maximum durability
- Aggressive sound level with the classic 40 Series character
- 3.00" inlet diameter with a dual outlet configuration
- High-temperature paint finish built to handle exhaust heat
Fitment & Configuration
This is a universal-fit muffler, making it a versatile choice for classic muscle car builds and custom exhaust projects where you want proven Flowmaster sound and flow. It features a 3.00-inch inlet diameter and a dual outlet location to suit your system layout. Please note the muffler uses new hangers, which are not included, so plan your installation hardware accordingly. Exhaust tips are also sold separately, giving you the freedom to finish the system exactly the way you envision it.
Because fitment is universal, the Super 40 gives fabricators and enthusiasts the flexibility to integrate it into a wide range of exhaust setups. Whether you’re chasing that deep idle rumble or a more assertive tone under throttle, the Super 40 Series brings a time-tested Flowmaster attitude to your ride.
Carrying an emission code of 5, the Flowmaster Super 40 Series Chambered Muffler is the performance muffler to reach for when you want durable construction, a bold aggressive sound, and the flow benefits that Delta Flow® technology is known for.
