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Gibson Exhaust Systems - 12203

Cat-Back Exhaust
  • $378.36
  • Free Shipping
  • Ships Between 10/04 - 10/08
  • What Do You Drive?


  • Style:
    2.25" Single swept side exit (Aluminized)
  • Part #:
  • Exits behind driver side rear tire
  • Tubing diameter: 2.25" stainless mandrel bent tubing
  • Muffler specifications:
    • Inlet: 2.25" offset
    • Outlet: 2.25" offset
    • Body height: 6.00"
    • Body length: 24.00"
    • Body shape: Round
    • Exhaust sound: Aggressive
  • Tip specifications:
    • Inlet: 2.25"
    • 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 #12203 Customer Reviews

Average Rating

6 Customer Reviews

Gibson exhaust system

Reviewed by Chris E (La Mesa, CA) Reviewed for a 2002 Nissan Xterra — Jul 15, 2016 9:26 AM

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Gibson exhaust systemsounds good get a lot more low and Tyler are satisfied with this product Once again auto anything delivered on time and right with the quote to Gabe recommend this for her vehicle

great value

Reviewed by James V (LIVINGSTON, NJ) Reviewed for a 2002 Nissan Xterra — Feb 25, 2015 6:39 AM

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Perfect sound,half the cost of stock.

Well worth the price

Reviewed by Jeremy N (JARRETTSVILLE, MD) Reviewed for a 2002 Nissan Xterra — Jun 11, 2014 8:07 PM

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1 of 1 people found the following review helpful.

Purchased the Gibson aluminized steel exhaust system for my Nissan xterra as a more reasonably priced option the installing the factory exhaust. It was very easy to install with the exception of the old rusted exhaust bolts which had to be cut off to replace. Happy with the ease of installation and the sound is not loud or annoying.

Gibson Exhaust Review

Reviewed by Jonathan C (Vienna, VA) Reviewed for a 2010 Ford F-150 — Jun 20, 2011 8:17 PM

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10 of 11 people found the following review helpful.

It looks like a nice exhaust. I hate providing a review for something two weeks after I install it when it hasn't been exposed to anything that might rust it. Yet, the metal feels heavier gauged, so it'll probably last longer than a cheap replacement exhaust. Actually it went on faster than taking the old one off since the rusted bolts were a pain in the butt. You'll need to go to an auto store an get new gaskets, hangers, and nuts and bolts since the exhaust doesn't come with replacement versions. Also, the instruction don't tell you how to assemble the pipe to the muffler other than slip it on. You might need a torch to heat the muffler outlet up to expand it enough to slip it onto the tail pipe. Anyway, they don't tell you about things like that in the instructions.

Gibson exhaust 2000 Xterra

Reviewed by Edward G F (Lawrenceville, NJ) Reviewed for a 2000 Nissan X Terra — Dec 23, 2008 2:14 PM

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System came quickly, nicely packaged and in good condition. The quality is at least as good if not better than anything else I've seen (I got the side swept in alum. steel)- I probably should have gotten stainless but time will tell. Fit was perfect, install piece of cake except removing old system. Definite increase in response, accelleration and power while remaining quiet with nice tone. Couldn't be happier.

Xterra 2000

Reviewed by Dylan P (Boise, ID) Reviewed for a 2000 Nissan X Terra — Sep 07, 2007 4:05 PM

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Overall pleased with product could have been a little louder really like the increased horsepower