[daveiaff]

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

 

[05_LLY]

Lots of folks have straight piped their stock exhaust, its a touch louder but nothing to obnoixious!


BTW. Welcome to the site!!!!!

 

[TYREBOYZ_DEMAXIN]

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

 

[ob_1jr]

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.

 

[Slidewide]

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.

 

[Tow Master]

Id get ride off all the junk in the exhaust! :rockin

Both the cat and the muffler loose sound and some power. Even more power if you loose the cat. Id definetly say loosing the muffler would help.


Welcome to the site as well! You live in Jefferson Hills? If you need any help with your dmax just yell