The new Large Bore-HD exhaust is engineered to perform in the most extreme environments. This system is constructed from mandrel bent 4" 409 stainless steel tubing for maximum flow, increased horsepower, increased torque and lower EGT's. This system is available in 4" turbo-back with muffler, muffler delete pipe and a polished tip. Large Bore-HD exhaust systems are the perfect combination of performance, fit and value.
Installation is a Snap:
All systems use factory mounting locations providing stability and hassle-free installation.
High quality OE style flange and band clamps are used for a complete 360 degree sealing surface.
A free-flowing 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. Muffler delete pipe is also included for those who prefer a true race-inspired sound and maximum flow.
OE style bayonet hangers are used to maintain a stable pipe location during high vibration and high heat conditions. The Bayonet tip holds the hanger bushing in place for an OE style fit that does not change with time.
Flow and Performance:
Large Bore-HD exhaust systems are constructed of 4" mandrel bent 409 stainless steel tubing for maximum flow. Smooth transition bends allow for low turbulence, increasing horsepower, torque and lowering EGT's.
This is a Race Only product that is to be used solely for competition, it cannot be used on vehicles that are operated on public streets, roads or highways. Its use is limited to closed-course and open-course racing that is formally sanctioned by a recognized racing organization. Any other use, including recreational off-road use, could be in violation of local, state and federal laws. To complete the purchase of this item, aFe Power competition acknowledgement/liability release form must be filled out and submitted.
Race Disclaimer Exclusions:
1999-2001 (All) and 2002-2003 Vehicles w/ Automatic Transmissions
All aFe exhaust systems are engineered and manufactured in our Corona, California facility.
Year Make Model SubModel Engine Fuel 1999-2003 Ford F-250 Power Stroke Turbo Diesel V8 7.3L Diesel 1999-2003 Ford F-350 Power Stroke Turbo Diesel V8 7.3L Diesel
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- I Have This On My 99' F-350 Lariat 4 X 4 Crew Cab Long Bed...
- I Have This On My 99' F-350 Lariat 4 X 4 Crew Cab Long Bed Truck With The 7.3 Diesel Powerstroke Engine,I Bought The Whole Package Cold Air Intake And Exhaust System With The 4" And It Sounds Great And It Has A Nice Flowing Sound, Has A Nice Rumble Deep And Throaty Sound. I Get Alot Of Thumbs Ups From Passers By And Going Down City Streets At 30 Mph. It Just Roars Its A Must Buy No Need To Look Any Futher You Will Not Find A Better Product Nor A Better Price So Stop Looking And Get This Exhaust System You Won'T Be Disappointed, I Promise, You Will Like What You Hear And See,Leting Youre Truck Have A Nice Exhaust Flow With Out No Restrictions.