The Sound of Flowmaster Mufflers
The Sound of Flowmaster Mufflers

Super 44 Series:

- The most aggressive sounding street muffler offered
- Deep, high performance exhaust tone
- Two chamber power and torque enhancing design
- Race-proven, patented Delta Flow Technology
- Made of 16-gauge aluminized steel
- No internal packing to blow out
- Body measures 4" X 9-3/4" X 13"
- Shop Super 44 Series Mufflers
40 Series:

- Offers the signiture high performance Flowmaster sound
- Aggressive exterior sound level
- Two chamber patented Delta Flow Technology
- Aluminized steel construction
- Fully MIG welded for durability
- Body measures 4" X 9-3/4" X 19"
- Shop 40 Series Mufflers
Super 40 Series:

- Works in place of any other 40 Series muffler
- Deeper, richer tone than original 40 Series muffler
- The choice of performance street machine/rod builders
- Constructed of 16-gauge aluminized steel
- Fully MIG-welded for maximum durability
- Body measures 5" X 10" X 13"
- Shop Super 40 Series Mufflers
50 Series:

- Moderate tone – perfect for performance and passenger cars
- Features advanced three-chamber design
- Delta Flow internal technology
- Available in aluminized steel or 409S Stainless Steel
- Both styles are fully MIG-welded for maximum durability
- Body Measures 4" X 9-3/4" X 23"
- Shop 50 Series Mufflers
HP2 Series:

- Delivers terrific ’50's style street rod tone
- Laminar Flow muffler technology
- 304 or 409S Stainless Steel exterior casing
- Limited lifetime warranty to original purchaser
- Low exterior heat via Cool Shell Technology
- Overall reduced exterior sizing for easy fitment
- Body measures 4" X 5-1/2" X 18-1/4"
- Shop HP2 Series Mufflers
Pro Series:

- Most versatile Laminar Flow muffler offered
- Deeper tone for great performance sound
- 409S Stainless Steel construction
- Limited lifetime warranty to original purchaser
- Low exterior heat via Cool Shell technology
- Both full-size and shorty version available
- Body measures 3" X 6" X 16-1/4"
- Shop Pro Series Mufflers