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Gibson Exhaust Systems - 618602

Cat-Back Exhaust
  • $464.99
    • On Sale: 25% Off
  • $348.74
  • Free Shipping
  • Ships Between 12/26 - 12/28
  • What Do You Drive?


  • Style:
    2.5" Single swept side exit (Stainless)
  • Part #:
  • Exits Behind Passenger Side Rear Tire
  • Tubing diameter: 2.50" aluminized 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 #618602 Customer Reviews

Average Rating

6 Customer Reviews

easy install but

Reviewed by willaim m (GILMANTON, NH) Reviewed for a 2005 Toyota Tundra — Aug 17, 2017 3:22 PM

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easy install but a bear to tighten rear muffler clamp, nice sound time will tell on quality.


Reviewed by Kurt B (RICHMOND HILL, GA) Reviewed for a 2006 Toyota Tundra — Nov 08, 2014 7:08 AM

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The Gibson custom exhaust was everything I hoped it would be, and fit perfectly. I completed the installation myself, in my driveway. The entire process took 45 minutes, with almost 30 required to remove the stock exhaust from the rubber shock mounts. The installation of the Gibson system took all of 10 minutes! To top it off it sounds awesome, and the increase in torque and acceleration was noticeable immediately. I could not be happier.

Great exhaust

Reviewed by Michael D (TOMS RIVER, NJ) — Sep 25, 2014 3:50 AM

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1 of 2 people found the following review helpful.

The exhaust was easy to put on my Tundra. The hardest part was removing the old exhaust. Installed with basic tools and fit perfectly on the original hangers. Great quality. Great sound. I would recommend this exhaust to anyone looking for an upgrade from the stock exhaust.

Gibson exhaust for 2006 Double Cab Tundra

Reviewed by David H (Leesburg, VA) Reviewed for a 2006 Toyota Tundra — Apr 17, 2014 8:50 PM

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1 of 1 people found the following review helpful.

Gibson exhaust system is everything that Gibson clams it would be. Horsepower is increased from 0 to 40mph. You can feel it from the moment you step on the gas pedal. Noise level is a little high and competes with my stereo but I needed the added horsepower for towing a camper,so that's a trade off. Hardest part of install is removing the old exhaust.One note I have is that on the factory exhaust clamp, the nut is welded on and only the bolt is removed.My exhaust bolt was so rusted that it broke.For $7 dollars I got a new exhaust clamp and a new bolt. I also used an exhaust sealant on every part conection. Did this because even after tightened down all exhaust clamps,the exhaust system was still a little loose. Would recommend Gibson exhaust system to anyone looking for a little more pep in there ride and a better V8 sound.

Love it

Reviewed by Larry M (Grantsville, MD) Reviewed for a 2003 Toyota Tundra — Jan 06, 2010 11:47 AM

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3 of 3 people found the following review helpful.

The new system was easier to install than it was to remove the old.Took about 90 min. and fit right up. Glad I went with the stainless steel.

Easy Installation

Reviewed by Brian P (Great Barrington, MA) Reviewed for a 2005 Toyota Tundra — May 31, 2007 3:04 PM

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1 of 2 people found the following review helpful.

The Gibson Exhaust System sounds great; a low rumble. It's very easy to install. The most difficult aspect of the installation was removing a rusted bolt, which I actually sheared off so have some extras ready, which held a clamp together. Even with a generous application of WD-40, the bolt wouldn't budge. Otherwise, it was a breeze. Looks great; sounds great.