DBTKDT Posted February 11, 2011 Report Share Posted February 11, 2011 Ok, I have an 03 1500 Hd that has the 6.0 LQ4. I have the basic mods done, cold air intake and a 93 tune from Wheatley. I just installed some 05 e-fans and i really feel a good difference in throttle response and all out performance. The best part is I have gained a few mpg all around. I do a lot of driving and would like to gain as much mpg as i can. I want to do an custom exhaust and don't want a very loud system but more like a nice mellow smooth sound? I was thinking to do an x-pipe with dual mufflers and dual exit out the passenger side? Need imput please. Quote Link to comment Share on other sites More sharing options...
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