Description
Overview
The Flowmaster 70 Series Chambered Muffler is engineered for drivers who want a smooth, mild 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 to bring refined tone and reliable flow to a wide range of vehicles.
Constructed from 16 gauge aluminized steel and fully MIG welded, this muffler is made to hold up to demanding conditions and years of use. The high-temperature paint finish adds an extra layer of protection against the heat and elements that exhaust components face every day, making it a dependable upgrade for daily drivers and hard-working vehicles alike.
Key Benefits
The 70 Series is tuned for a mild sound level, making it an ideal choice for owners who prefer a deeper, controlled exhaust character rather than an aggressive, loud drone. The enlarged case and Delta Flow® internal design work together to manage sound while promoting efficient exhaust flow, supporting both drivability and everyday performance. Whether you’re hauling, towing, or cruising, this muffler is built to perform where space allows for its big-block design.
- Delta Flow® technology for improved sound control and efficient exhaust flow
- Enlarged case engineered to support mileage and power gains
- 16 gauge aluminized steel construction, fully MIG welded for maximum durability
- High-temperature paint finish for added heat and corrosion protection
- Mild sound level for a smooth, refined exhaust note
- 3.00″ inlet diameter with a universal fitment design
Applications
This muffler is perfect for use on trucks, SUVs, RVs, tow vehicles, and high-performance street cars where space allows for the 70 Series Big Block case. If you rely on your vehicle for towing or long highway miles and want an exhaust upgrade that balances sound, performance, and durability, the 70 Series is a strong match. Its truck and SUV focus makes it a natural fit for anyone looking to enhance their setup without an overly loud result.
Fitment & Installation Notes
The Flowmaster 70 Series features a 3.00″ inlet diameter and a universal fitment, giving you flexibility across many builds. Please note that installation requires new hangers, which are not included, and exhaust tips are sold separately. Plan your install accordingly and pair the muffler with the mounting hardware and tips that best suit your vehicle and desired look.
With its combination of Delta Flow® engineering, rugged aluminized steel construction, and a mild, controlled tone, the Flowmaster 70 Series Chambered Muffler is a smart choice for drivers seeking a durable, well-rounded exhaust upgrade.











