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Gibson Exhaust Systems - 18800

Cat-Back Exhaust
  • $446.08 - $3,008.23
  • $359.95
  • Free Shipping
  • Ships Between 1/25 - 1/29
  • What Do You Drive?


  • Style:
    2.5" Single swept side exit (Aluminized)
  • Part #:
  • Exits Behind Passenger Side Rear Tire
  • Tubing diameter: 2.50" stainless mandrel bent tubing
  • Muffler specifications:
    • Inlet: 2.50" offset
    • Outlet: 2.50" offset
    • Body height: 6.00"
    • Body length: 24.00"
    • Body shape: Round
    • Exhaust sound: Aggressive
  • Tip specifications:
    • Inlet: 2.50"
    • Outlet: 3.00"
    • Length: 8.00"
    • Finish: Polished
    • Material: 304 Stainless steel
    • Shape: Round
    • Cut: Slash-cut
    • Attachment: Clamp-on
  • Download installation instructions (PDF)

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Gibson Exhaust Systems Part #18800 Customer Reviews

Average Rating

3 Customer Reviews

Great Aftermarket Exhaust

Reviewed by Frank B (LONE TREE, CO) Reviewed for a 2004 Toyota Tacoma — Jun 04, 2015 8:09 AM

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This exhaust system was easy to order & install on my 2004 Tacoma Double Cab. It arrived about a week after ordering and took 2.5 hrs to complete. It was a nice easy project for me & my 13 year old son who is really into wrenching. We worked slowly as it was a teaching process, hence the 2.5 hrs. I purchased the coupler nuts and gasket from Toyota because the kit doesn't come with them and they were just a few dollars total. It looks great and sounds nice and deep. Way better than the OEM!

'04 Tacoma - Nice improvement!

Reviewed by Chris R (CLAYTON, NC) Reviewed for a 2004 Toyota Tacoma — Apr 04, 2013 7:38 AM

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2 of 2 people found the following review helpful.

Got the system in about a week. As with other reviewers, getting the stock system off without help or cutting was a bearcat. I painted the plain-steel w/ Hi-Heat paint. System went on smoothly. Used thread-locker on all clamps and bolts. Cranked her up and Wow..what a difference. Mellow idle-burble, and when I put my foot in it, Mid-range power and torque way up. The O/D shiftpoint changed (more pull). Sounds great, improves performance. Great value. Mileage not evaluated yet.

2001 Toyota Tacoma Dbl cab

Reviewed by Mike F (PEARLAND, TX) Reviewed for a 2001 Toyota Tacoma — May 23, 2011 4:50 AM

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2 of 2 people found the following review helpful.

Product installation was easy with basic hand tools. Took about and hour and the system really helped the 3.4L out. Sounds strong !! Should know this week how it helped my gas mileage out. Thanks Autoanything !!!