Large-Bore 4" 409 Stainless Steel Construction
Looking for more power, lower exhaust gas temperatures (EGTs) and bigger sound? Look no further. This aFe Power Large-Bore 4" Stainless Steel Exhaust System optimizes exhaust flow thanks to its larger 4" diameter and high-quality 409 stainless steel construction. The kit emits a louder-than-life exhaust note thanks to a free-flowing 24" muffler that absorbs high pitch tones. The tubing is mandrel-bent to ensure smooth, nonrestrictive transition bends allowing for strong, uninterrupted exhaust outflow. This off-road exhaust system is built to withstand the most unforgiving conditions and environments, which is why if you're looking for an aggressive, performance-ready exhaust system for high-speed runs, we've found your solution in aFe Power's 409 Stainless Steel 4" Exhaust System.
High-Quality, OE-Style Bayonet Hangers
If you're going to be romping through rugged off-road courses in your 2003-2007 Super Duty, you've come to the right place. High-quality OE style bayonet style hangers are included to properly secure this heavy-duty off-road exhaust kit to your truck's underside no matter how rocky or uneven the terrain. This race-ready exhaust kit includes extension pipes for crew cab/long bed fitment and utilizes your factory mounting locations to provide super stable and hassle-free installation. High-strength OE-style flange and band clamps are included for a complete 360 degree sealing surface. Everything about this aggressive exhaust kit is designed to hold up against the absolute worst abuse anyone can put it through.
Fitment: 2003-2007 F250/F350 6.0L Powerstroke Crew Cab/Short Bed, Crew Cab/Long Bed, SuperCab/Short Bed & SuperCab/Long Bed (SuperCab models will require minor trimming)
Warranty: This aFe Power Large-Bore 4" 409 Stainless Steel Exhaust System is backed by a Two-Year Warranty.
*RACE ONLY*: This is a "Race Only" product intended solely for competition. Its use should be 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.