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Discussion Starter #1

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I may be wrong but I believe they are talking about the muffler. I have the GM performance cat back on my 2007 Canyon 4x4 and it says on the muffler performance. When you order the tip the choices are straight cut, angle cut, double wall lined, or single wall lined. Theres nothing about the tips being touring or performance. They're the same for either. So I believe its the muffler. Which would be the same on the outside so it would be interchangable. But obliously different inside.
 

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Discussion Starter #4
Interesting. Thanks!
 

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They are two separate systems. The touring has a throaty purr and the performance has an aggressive growl. Ive heard them both and the performance definitely sounds better. I work in the parts dept. of Bob Fisher Chevrolet in Reading, PA so I have definitely looked at all of the available GM accessories.

Here is a link that you can listen to what the different systems sound like on the Colorado and other models:
http://www.gmaccessorydealer.com/exhaust/index.asp
 
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