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Gibson 9004 Cat-Back Dual Extreme Exhaust System Aluminized

(1999-2004 Ford F-250 Super Duty; 1999-2004 Ford F-350 Super Duty)

Part of: Gibson Performance Exhaust Dual Extreme Cat-Back Exhaust System

Other options in this family: Gibson Exhaust 9704 Gibson Exhaust 5403 Gibson Exhaust 17306-B Gibson Exhaust 5587 Gibson Exhaust 65587

Manufacturer

Picture for manufacturer Gibson Exhaust

Part Number

9004
17 reviews
Sale Price

$682.27

Estimated ship date Tuesday, November 17

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Product Details

The Gibson 9004 Cat-Back Dual Extreme Exhaust System is a complete bolt-on dual exhaust upgrade built for truck and SUV enthusiasts who want aggressive sound, improved performance, and a bold under-bumper look. Featuring 2.50-inch aluminized mandrel-bent tubing, this system is engineered and dyno-tuned to reduce exhaust backpressure and deliver average gains of 15–20 horsepower over a restrictive factory system.

The dual exit configuration routes both pipes behind the rear tires at an aggressive angle, giving your truck a purposeful, performance-oriented appearance. Gibson's proprietary Superflow CFT (Continuous Flow Technology) muffler uses a baffled and chambered design with no internal packing, resulting in minimal interior drone while producing a deep, aggressive exhaust tone.

Muffler Specifications:

  • Design: Baffled and chambered muffler — no internal packing
  • Inlet: 2.50 in. dual
  • Outlet: 3.00 in. offset
  • Body: 8 in. round
  • Length: 24 in.
  • Sound profile: Aggressive tone with minimal interior drone

Exhaust Tip Specifications:

  • Material: T304 polished stainless steel
  • Style: Round slash-cut tip, clamp-on
  • Inlet: 2.50 in.
  • Outlet: 3.50 in.
  • Length: 12 in.

System Features:

  • 2.50 in. aluminized mandrel-bent tubing for unrestricted exhaust flow
  • Dual exit behind each rear tire
  • Easy bolt-on installation — no welding required
  • 50-state legal and California emissions compliant
  • Backed by Gibson's Lifetime Limited Warranty

This complete cat-back exhaust system includes the muffler, all necessary pipes, and polished stainless slash-cut tips. Installation is straightforward with no cutting or welding needed, making it an ideal weekend upgrade for truck owners looking to unlock more sound and performance from their vehicle.

Products specifications

Fits

1999-2004 Ford F-250 Super Duty; 1999-2004 Ford F-350 Super Duty

Tubing Diameter

2.50-in. Aluminized mandrel bent tubing.

Muffler Dimension

8 in. Round; 2.50 in. Dual Inlet; 3.00 in. Offset Outlet; L-24 in.

Muffler Description

Baffled and Chambered Muffler Design, No internal Packing, Minimal Interior Drone, Aggressive Sound

Material

Aluminized

Tip Specifications

Inlet 2.50in.; Outlet 3.50in.; L-12in.

Prop 65

Yes

Tip Description

3.5in. Polished T304 Stainless. Round Slash-Cut Tip. Clamp on.

Exit Position

Exits Behind Each Rear Tire.

Outlet

Dual

Category

Truck and SUV

Tip Logo

None

Outlet Outside Diameter

3.000 in.

Exit Position

Dual Split Rear Behind Rear Tires

Inlet Inside Diameter

2.500 in.

Tubing Diameter

2.500 in.

Muffler Type

Chambered

Muffler Body Length

24.000 in.

Exhaust Type

Dual

Tail Pipe Diameter

2.500 in.

Exit Style

Straight

System Type

Cat Back

Tip Diameter

3.500 in.

Very easy to find what I needed as well as completing my order. Thank you

I received the wrong pieces

All good.

Great product, excellent shipping speed. Update your product photos!

fast service

Good prices Good results

Easy to find what I needed and checkout was a breeze. Thanks!

Rated good. Always hate delay of having to order, but delivery time was reasonable.

5 Star.

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User friendly

They had the lowest price and great communication. Will order from them again thanks

Great seller, lowest price on web, super fast shipping order 25599, will buy from again without hesitation.

This site was just like shopping at a real store. It was easy to make my order and I was able to do it on the go on my smartphone which is important to me that a site is compatible with handheld. Bravo

Great prices for the parts I needed to replace on my SUV, a bit hard to reach customer service when I had a question about the order. When I finally did reach CS, question was answered without any issues, shipping costs seem a bit high.

The ordering process was simple and user friendly. The pricing was the lowest I could find for a brand new AMP Powerstep for my Ford F150. The tracking number was provided and the item is scheduled for FedEx ground delivery in 3-days.

Best price by far over 100 dollars different from amazon.com. I will definitely shop here agian

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