Description
Overview
The Flowmaster 70 Series Chambered Muffler brings proven Delta Flow® technology to big block builds and street-driven classics that demand a refined exhaust note without giving up performance. Engineered as part of Flowmaster’s 70 Series Big Block lineup, this chambered muffler pairs an enlarged case design with a mild sound level, making it an ideal choice for enthusiasts who want a controlled, comfortable tone rather than an aggressive drone.
At the heart of this muffler is Flowmaster’s Delta Flow® technology, which is engineered to improve sound control while contributing to mileage and power gains. The enlarged case is built to manage flow and acoustics together, delivering a balanced result that works equally well on trucks, SUVs, RVs, tow vehicles, and high performance street cars where space allows.
Built to Last
Durability is designed in from the start. The 70 Series muffler is constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability, so it stands up to the heat, vibration, and long-haul demands of everyday driving and towing. A high-temperature paint finish helps the housing hold up against the elevated temperatures that come with exhaust duty.
Key Benefits
With a 3.00 inch inlet diameter and a design tuned for a mild sound level, this muffler is a smart upgrade for classic muscle car owners who want dependable flow and a manageable tone. It carries an emission code of 5, and exhaust tips are sold separately so you can finish the system exactly the way you want.
- Delta Flow® technology for improved sound control plus mileage and power gains
- Enlarged case design for balanced acoustics and flow
- 16 gauge aluminized steel construction, fully MIG welded for maximum durability
- Mild sound level for a refined, controlled exhaust note
- 3.00 inch inlet diameter
- High-temperature paint finish built for exhaust-duty heat
Applications
Part of the 70 Series Big Block family, this muffler is well suited to classic muscle cars as well as trucks, SUVs, RVs, tow vehicles, and high performance street cars where space allows. Whether you’re refreshing the exhaust on a weekend cruiser or building a capable tow rig, the 70 Series delivers Flowmaster engineering with a milder character.
Because exhaust tips are sold separately, you have the flexibility to complete your system with the look and configuration that fits your build. Pair this muffler with the tip and piping of your choice to create an exhaust setup tailored to your vehicle and driving style.
