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Discussion Starter · #1 ·
I have an 01 duramax that I just put an edge box on and I am looking to upgrade my exhaust.... I am looking for a system with a loud whistle I have heard a few on the internet but the post never show what system they are running. I have done a lil research into John Kennedy, HOG, and AFE if anyone has one of these or another system some info would be greatly appreciated.... THANKS
 

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If you want an all out loud system....you can't beat straight pipe especially on an LB7. Of course there are 2 ways to do that.....in stock 3.5" and going 4" with a muffler delete pipe. I have the MBRP system and it is pretty mellow compaired to the straight pipe stock system I had before. My buddy says he can hear the turbo spool up better with it (MBRP). I am still tossing around getting the muffler delete pipe though.
 

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While i would upgrade the exhaust, myself i like the mbrp stuff, the afe is decent quality in my own experience it takes a little more tweaking to get it to fit right! But to get the most turbo whistle i would look into a true open air intake(not a sealed type intake)!
 

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You thread is talking about exhaust but these HOG, and AFE are intakes or thats what i visulize when I hear the names. DFo they have exhaust? They(intakes) might help with the whistle depending on who you talk with. There are no preformance pros to them so I wouldnt bother. I straight pipe will heve alot a whistle. Typically speaking duals have les whistle than a single pipe. If you really wanna here it go with stacks.
 

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Hog exhaust have been around awhile, AFE is rather new to the game. A shorter exhaust will give you more whistle, but IMO a Open filter type intake will be the best bet. AFter market intakes have not proven any hp gains untill you near 500rwhp or more!
 

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AFter market intakes have not proven any hp gains untill you near 500rwhp or more!
Well im almost there. Might have to get one.:D
 

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I have just added one but i modified it a bit because i felt it needed it:D

Going to hit the rollers on the 25th hoping for 500hp but i think i'll need to travel to california to hit that number:confused: !
 

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Discussion Starter · #8 ·
Thanks for the help

Thanks for the advie I ordered a five inch system with no muffler and an stage two magnum force afe intake so hopefuly the combination with the edge box is gonna sound pretty kick ass!!!!
 
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