Gibson Cat-Back Exhaust System Dual Split Stainless Steel Extended/Crew Cab 4.6L/5.4L F-150 2004-2008

Packaged with OE-styled hangers to easily bolt on newfound performance, this Stainless Steel Dual Split Cat-Back Exhaust System by Gibson is a must for 2004-2008 F-150s (69523)! Using 2-1/2” of mandrel bent tubing, this system unsheathes 15-20 horsepower gains in your 4.6L or 5.4L engine. It simultaneously paves the way for a boost in torque production and decrease in backpressure, promoting performance all around. A baffled and chambered muffler complements it in sound, roaring at the exterior while comfortably droning inside. Coupled with the 3-1/2” round and slash-cut tips, it leaves an impression worthy of your extended or Crew Cab.

Features and Benefits:
- 2-1/2" stainless steel, mandrel-bent tubing
- Averages 15-20 horsepower gains
- Boosts torque production, decreases backpressure
- Baffled & chambered muffler
- Aggressive sound w/ minimal interior drone
- 3-1/2" round, slash-cut tips
- Exits straight out the back
- Includes hardware & factory-style hangers
- Bolt-on, weld-free installation

Vehicle Fitment:
- 2004-2008 Ford F-150
- Fits Extended and Crew Cab models
- For models with a 4.6L or 5.0L engine ONLY

Tech Tip: Manufactured after August 2004; will fit models with an 18” spare tire.

Additional Notes:
- Exhaust sound is louder under towing conditions.
- Works with most bumpers, roll pans, and trailer hitches.