Old Jun 11, 2008 | 12:39 PM
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MannyTwoTwo
Joined: Feb 2008
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Default Re: Does anyone notice their gas milage decrease with the new muffler?

I'm thinking of removing the back cats as well and was wondering if it really makes a difference in the sound and what is a decent cost for the removal if I take it to a shop.


Originally Posted by Mimi05SRT6
I agree. I removed my rear cats and I think it slightly went up, not positive but it just appears to have.
 
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