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Discussion Starter · #1 ·
On my 03, I'm finally looking at doing some mods like I had on my 7.3 PS. First exhaust, but I'm looking for a throaty sound. I put a 4" Jegs on the 7.3 which gave more of a low rumble, but the cost was reasonable.
I've seen sum people say a AFE off road exhaust? Location?
Will the 5 sound deeper and can I use it w/o power mods?
 

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i did a combination of both, 4 and 5. 4" front pipe and 5" after that. since there is no good aftermarket exhaust for a reg cab, its all for a 06 crewcab dually. i also lost the flange and went with the 4-5 adapter. it was kinda a PITA, but i like it.
 

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i have a 5" T/B and i love the sound,it screams under throttle..
 

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Discussion Starter · #5 ·
So a 5" w/o a muffler sounds good? I tried it on the PS and it just did not sound right.
 

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i've noticed a big difference in sound in the lb7 with the old turbo compared to the lly/lbz's with the vvt turbo. the newer trucks sound like a jet taking off, while the lb7's have a deeper sound to them. so a 5'' on a lb7 will sound different than a 5'' on a lly/lbz
 

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So a 5" w/o a muffler sounds good? I tried it on the PS and it just did not sound right.
i suppose its personal preference. personally, i dont like the way it sounds. but there again, i dont like the way any duramax sounds (i do like the duramax better than the cummins though). i think the PS sounds better than any other diesel i have heard when straight piped.

one of the main reasons i went with a 5 is because i couldnt stand buying an aftermarket exhaust that was only 1/2 inch bigger than what i already had. i felt at 1 and a half inches, i got my moneys worth.
 

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5" on LB7

i got an LB7 with a 4" straight pipe and love it. was wondering what it would sound like with a 5" instead of a 4". anyone have a straght piped 5" LB7 tell me what you think and what it sounds like vs. a 4".
 

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i love it is very loud under a load but otherwise quiet i love it! but i pull trailers everyday so it gets very annoying it lowerd my EGT's about 150*.
Tom
 

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I have a 5 " magnaflow. Love the way it sounds ( turns heads ) but not sure if I have the back pressure that I need.
 

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I have to get off my lazy arse and actually put my exhaust on. I have had a MBRP 5" sitting in my garage for 3 months now.
 
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