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Discussion Starter #1
Has any one tried the muffler eliminator? Let me know what you think. I have a 2006 GMC duramax w/ allison auto.. Thanks
 

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Hi, I'm Earth. Have we met?
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Lots of folks have straight piped their stock exhaust, its a touch louder but nothing to obnoixious!


BTW. Welcome to the site!!!!!
 

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welcome to the site..i love a good old straight..
 

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I liked mine straight piped better than the 4" because there was less drone, but I still like the 4" system. Straight piping was just a cheap means until I found a good deal on a 4" system.
 

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Just had my stock muffler replaced with some pipe. I was amazed at how quiet it still is!! I have to turn off the radio on the highway to even tell there was a change. Just a slight difference at idle, and a little more turbo whistle when I let off the pedal. I would assume its pretty close to a 4in cat back exhaust performancewise, just a lot cheaper. All in all I'm pretty happy with the price/performance value of ditching the muffler.
 

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Oh...... Squirrel!
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