
DynoMax 39310 - Ultra Flo Welded Exhaust System
DynoMax Ultra Flo Welded Exhaust Systems feature a stainless steel welded muffler which features a straight-through design to ensure free air flow in your exhaust and reduced back pressure. The systems have a deep performance tone, as well as 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 | Body Style (Old/New) | Cab and Bed Style |
---|---|---|---|---|---|---|
1999 - 2001 | CHEVROLET | SILVERADO 1500 | BASE, LS, LT | 4.3L V6 GAS, 4.8L V8 GAS, 5.3L V8 GAS | Extended Cab w/78.0 in./6 ft. 6 in. Bed | |
2002 - 2003 | CHEVROLET | SILVERADO 1500 | BASE, LS, LT | 4.3L V6 GAS, 4.8L V8 GAS, 5.3L V8 FLEX, 5.3L V8 GAS | Extended Cab w/78.0 in./6 ft. 6 in. Bed | |
2004 | CHEVROLET | SILVERADO 1500 | BASE, HYBRID, LS, LT, WT, Z71 | 4.3L V6 GAS, 4.8L V8 GAS, 5.3L V8 ELECTRIC/GAS, 5.3L V8 FLEX, 5.3L V8 GAS | Extended Cab w/78.0 in./6 ft. 6 in. Bed | |
2005 | CHEVROLET | SILVERADO 1500 | BASE, HYBRID, LS, LT, WT | 4.3L V6 GAS, 4.8L V8 GAS, 5.3L V8 ELECTRIC/GAS, 5.3L V8 FLEX, 5.3L V8 GAS | Extended Cab w/78.0 in./6 ft. 6 in. Bed | |
2006 | CHEVROLET | SILVERADO 1500 | HYBRID, LS, LT, WT | 4.3L V6 GAS, 4.8L V8 GAS, 5.3L V8 ELECTRIC/GAS, 5.3L V8 FLEX, 5.3L V8 GAS | Extended Cab w/78.0 in./6 ft. 6 in. Bed | |
2007 | CHEVROLET | SILVERADO 1500 | HYBRID, LS, LT, WT | 4.3L V6 GAS, 4.8L V8 GAS, 5.3L V8 ELECTRIC/GAS, 5.3L V8 FLEX, 5.3L V8 GAS | Classic Body | Extended Cab w/78.0 in./6 ft. 6 in. Bed |
1999 - 2000 | CHEVROLET | SILVERADO 2500 | BASE, LS, LT | 5.3L V8 GAS | Extended Cab w/78.0 in./6 ft. 6 in. Bed | |
1999 - 2001 | GMC | SIERRA 1500 | SL, SLE, SLT | 4.3L V6 GAS, 4.8L V8 GAS, 5.3L V8 GAS | Extended Cab w/78.0 in./6 ft. 6 in. Bed | |
2002 | GMC | SIERRA 1500 | BASE, SL, SLE, SLT | 4.3L V6 GAS, 4.8L V8 GAS, 5.3L V8 FLEX, 5.3L V8 GAS | Extended Cab w/78.0 in./6 ft. 6 in. Bed | |
2003 - 2004 | GMC | SIERRA 1500 | BASE, SL, SLE, SLT, WT | 4.3L V6 GAS, 4.8L V8 GAS, 5.3L V8 FLEX, 5.3L V8 GAS | Extended Cab w/78.0 in./6 ft. 6 in. Bed | |
2005 | GMC | SIERRA 1500 | BASE, HYBRID, SL, SLE, SLT, WT | 4.3L V6 GAS, 4.8L V8 GAS, 5.3L V8 ELECTRIC/GAS, 5.3L V8 FLEX, 5.3L V8 GAS | Extended Cab w/78.0 in./6 ft. 6 in. Bed | |
2006 | GMC | SIERRA 1500 | HYBRID, SL, SLE, SLT, WT | 4.3L V6 GAS, 4.8L V8 GAS, 5.3L V8 ELECTRIC/GAS, 5.3L V8 FLEX, 5.3L V8 GAS | Extended Cab w/78.0 in./6 ft. 6 in. Bed | |
2007 | GMC | SIERRA 1500 | HYBRID, SL, SLE, SLT, WT | 4.3L V6 GAS, 4.8L V8 GAS, 5.3L V8 ELECTRIC/GAS, 5.3L V8 FLEX, 5.3L V8 GAS | Classic Body | Extended Cab w/78.0 in./6 ft. 6 in. Bed |
1999 - 2000 | GMC | SIERRA 2500 | SL, SLE, SLT | 5.3L V8 GAS | Extended Cab w/78.0 in./6 ft. 6 in. Bed |