Description
Overview
The Flowmaster 70 Series Chambered Muffler is engineered for drivers who want a milder, refined exhaust note without sacrificing performance. Built around Flowmaster’s proven Delta Flow® technology and an enlarged case, the 70 Series Big Block delivers improved sound control while helping unlock mileage and power gains. It’s a versatile, universal-fit muffler designed for real-world driving across a wide range of vehicles.
Constructed from 16 gauge aluminized steel and fully MIG welded, this muffler is made to withstand the heat, vibration, and demands of daily driving and spirited street use. A durable high-temperature paint finish helps protect the case, so it holds up under the harsh conditions found in a working exhaust system.
Key Benefits
With a mild sound level, the 70 Series is ideal for owners who want a deeper, controlled tone rather than an aggressive roar. The enlarged case and Delta Flow® internal design work together to smooth flow and manage resonance, making it a smart upgrade for trucks, SUVs, RVs, tow vehicles, and high-performance street cars where space allows. Whether you’re towing, cruising, or building a street/strip machine, this muffler is tuned to balance sound, efficiency, and power.
- Delta Flow® technology for improved sound control and performance
- Enlarged case designed to support mileage and power gains
- 16 gauge aluminized steel construction, fully MIG welded for maximum durability
- High-temperature paint finish to endure demanding exhaust conditions
- Mild sound level for a refined, controlled tone
- 2.50 inch inlet diameter with universal fitment
Fitment & Installation
This is a universal-fit muffler featuring a 2.50 inch inlet diameter, giving fabricators and installers flexibility when building or upgrading an exhaust system. It’s classified as a street/strip application and carries an emission code of 5. Please note the muffler uses new hangers, which are not included, so plan your installation hardware accordingly. Exhaust tips are sold separately, allowing you to finish the system exactly the way you want.
Who It’s For
The 70 Series Big Block is a great match for truck, SUV, RV, and tow vehicle owners who need dependable, quieter performance, as well as high-performance street car builders looking for a durable, well-flowing muffler. If you want the trusted engineering of Flowmaster’s Delta Flow® platform in a package tuned for a milder exhaust note, the 70 Series delivers a proven, versatile solution.
Backed by rugged aluminized steel construction and full MIG welding, this muffler is built to be a lasting part of your exhaust setup. Choose it when you want dependable sound control, efficiency, and durability from a name known throughout the performance exhaust world.
