aFe Power Large Bore-HD 5 IN 409 Stainless Steel Downpipe-Back Exhaust System w/ Muffler GM Diesel Trucks 02-04 V8-6.6L (td) LB7
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Increased exhaust flow means improved torque, horsepower and lower EGT’s. That’s why your Duramax diesel needs the Large Bore stainless steel down-pipe back exhaust system by aFe Power. This exhaust is built from 5" mandrel-bent 409 stainless steel tubing and includes a 8" diameter x 24" Long muffler for optimum flow and an aggressive sound. This system does not include a tip. Large Bore stainless steel exhaust systems are the perfect combination of performance, fit and value.
Installation is a Snap:
This Large Bore exhaust system includes an extension pipe to fit multiple cab configuration and uses factory mounting locations, providing stability and hassle-free installation.
Leak-Free Seal:
Quality OE style flange and band clamps are used for a complete 360 degree sealing surface.
Aggressive Sound:
A free-flowing 8" Diameter x 24" long muffler is used to absorb high pitch tones producing a powerful sound and unleashing all available horsepower and torque out of your rig.
OE Fit:
OE style bayonet hangers are used to maintain a stable pipe location during high vibration and high heat conditions. The bayonet tip locks into the hanger bushing for an OE style fit that does not change with time.
Flow and Performance:
Constructed of 5" mandrel bent 409 stainless steel tubing for longevity, the smooth transition bends result in increased exhaust flow and lower EGT's for improved throttle response and overall sound and performance.
Fitment Notes:
Extended Cab/Short Bed, 6.6 ft. Bed, 143.5" Wheelbase
Crew Cab/Short Bed, 6.6 ft. Bed, 153" Wheelbase
Extended Cab/Long Bed, 8 ft. Bed, 157.5 Wheelbase
Crew Cab/Long Bed, 8 ft. Bed, 167.1" Wheelbase
Features:
- 5" mandrel-bent 409 stainless steel tubing for maximum flow and longevity
- Quality OE style flange is used for a complete 360 degree sealing surface
- Includes a Free-Flowing 8" diameter x 24" long muffler for an aggressive sound
- Uses factory mounting locations, providing stability and a hassle-free installation
- OE style bayonet hangers are used to maintain a stable pipe location
Vehicle Applications:
| Year | Make | Model | SubModel | Engine | Fuel |
| 2002-2004 | Chevrolet | Silverado 2500 HD | (LB7) Duramax Turbo Diesel | V8 6.6L | Diesel |
| 2002-2004 | Chevrolet | Silverado 3500 HD | (LB7) Duramax Turbo Diesel | V8 6.6L | Diesel |
| 2002-2004 | GMC | Sierra 2500 HD | (LB7) Duramax Turbo Diesel | V8 6.6L | Diesel |
| 2002-2004 | GMC | Sierra 3500 HD | (LB7) Duramax Turbo Diesel | V8 6.6L | Diesel |
