
DynoMax 39321 - Ultra Flo Exhaust System
DynoMax Utlra Flo Exhaust Systems have a seamed and un-welded polished stainless steel muffler which features the same straight-through design of the DynoMax Ultra Flow Welded systems. The exhaust systems will support up to 1,900 hp and have a deep performance tone. The systems have a bolt-on design and easily attach to existing mounting points. They follow OE routing, and feature high-quality performance mufflers and mandrel-bent pipes which ensure smooth exhaust flow and optimal fuel efficiency. The exhaust systems have been dyno proven for maximum horsepower and torque gains.
Key Features:- Stainless Steel Cat-Back Exhaust System
- 3 in./2.5 in. Dual System
- Dual Split Rear Exit
- Incl. Ultra Flo Welded Muffler
- 3 in. Polished Stainless Steel Tips
- 50 State Legal

DynoMax Performance Exhaust is one of the major market leaders in the aftermarkets autoparts industry. The company manufactures a wide range of premium exhaust products which maximize performance and improve sound. They also offer an extensive collection of performance and replacement exhaust pipes, bends, crossover pipes, cutouts, reducers, mounting hardware and other exhaust accessories.
Year | Make | Model | Submodel | Engine Size | Cab and Bed Style |
---|---|---|---|---|---|
1997 | FORD | F-150 | BASE, LARIAT, XL, XLT | 4.2L V6 GAS, 4.6L V8 GAS, 5.4L V8 GAS | Extended Cab w/78.8 in./6 ft. 6.8 in. Bed, Extended Cab w/96.0 in./8 ft. Bed, Regular Cab w/78.8 in./6 ft. 6.8 in. Bed, Regular Cab w/96.0 in./8 ft. Bed |
1998 - 1999 | FORD | F-150 | BASE, LARIAT, XL, XLT | 4.2L V6 GAS, 4.6L V8 GAS, 5.4L V8 BI-FUEL, 5.4L V8 CNG, 5.4L V8 GAS | Extended Cab w/78.8 in./6 ft. 6.8 in. Bed, Extended Cab w/96.0 in./8 ft. Bed, Regular Cab w/78.8 in./6 ft. 6.8 in. Bed, Regular Cab w/96.0 in./8 ft. Bed |
2000 | FORD | F-150 | BASE, HARLEY-DAVIDSON EDITION, LARIAT, XL, XLT | 4.2L V6 GAS, 4.6L V8 GAS, 5.4L V8 BI-FUEL, 5.4L V8 CNG, 5.4L V8 GAS | Extended Cab w/78.8 in./6 ft. 6.8 in. Bed, Extended Cab w/96.0 in./8 ft. Bed, Regular Cab w/78.8 in./6 ft. 6.8 in. Bed, Regular Cab w/96.0 in./8 ft. Bed |
2001 | FORD | F-150 | LARIAT, XL, XLT | 4.2L V6 GAS, 4.6L V8 GAS, 5.4L V8 BI-FUEL, 5.4L V8 CNG, 5.4L V8 GAS | Crew Cab w/78.8 in./6 ft. 6.8 in. Bed, Crew Cab w/96.0 in./8 ft. Bed, Extended Cab w/78.8 in./6 ft. 6.8 in. Bed, Extended Cab w/96.0 in./8 ft. Bed, Regular Cab w/78.8 in./6 ft. 6.8 in. Bed, Regular Cab w/96.0 in./8 ft. Bed |
2002 - 2003 | FORD | F-150 | KING RANCH, LARIAT, XL, XLT | 4.2L V6 GAS, 4.6L V8 GAS, 5.4L V8 BI-FUEL, 5.4L V8 CNG, 5.4L V8 GAS | Crew Cab w/78.8 in./6 ft. 6.8 in. Bed, Crew Cab w/96.0 in./8 ft. Bed, Extended Cab w/78.8 in./6 ft. 6.8 in. Bed, Extended Cab w/96.0 in./8 ft. Bed, Regular Cab w/78.8 in./6 ft. 6.8 in. Bed, Regular Cab w/96.0 in./8 ft. Bed |
2004 | FORD | F-150 HERITAGE | XL, XLT | 4.2L V6 GAS, 4.6L V8 GAS, 5.4L V8 BI-FUEL, 5.4L V8 CNG | Extended Cab w/78.8 in./6 ft. 6.8 in. Bed, Extended Cab w/96.0 in./8 ft. Bed, Regular Cab w/78.8 in./6 ft. 6.8 in. Bed, Regular Cab w/96.0 in./8 ft. Bed |
1997 - 1999 | FORD | F-250 | BASE, LARIAT, XL, XLT | 4.6L V8 GAS, 5.4L V8 GAS | Extended Cab w/78.8 in./6 ft. 6.8 in. Bed, Regular Cab w/96.0 in./8 ft. Bed |