I reciently bought my dream truck an 02 chevrolet crew cab long bed duramax of course but i guess if im on here you guys would of guessed that but heres my problem i want a loud exhaust that has awsome flow i have been looking at a hog exhaust or a banks exhaust who has tried these or has some thing that they recomend also bigger is better right??? so 4 in or 5 inch mandral bent any help here would sure help thanks

Check our MBRP....I have a 5" cat back, due to I do not want the DRONE while traveling 13 hrs @ 70 mph.

Install was super easy also.

If you want loud then a 5" turbo back straight pipe should do the trick.:D

hey i looked at that mbrp exhaust its says that the spare may not fit after its installed so that concerns me but did you have this problem?

Try a search for loud exhausts. It has been discussed at great lengths many times over!
Why try and reinvent the wheel?

In my openion a catback exhaust on an LB7 is plenty loud. Some people have experienced a low end torque loss when replacing the front pipe, I did. I had a Banks cat back on my 03 LB7 and loved it.

My sugestion would be to go with a 4" turbo back system. I lost no low end at all doing this on my 03 and loved the sound. We put a 4" Magnaflow turbo back on and the sound was awesome. If you just put a cat back on, then you won't have much more sound than with the stock system until WOT, then it would be half of what a turbo back will sound like. Does the truck even have a cat?

I have the Bank's 4" catback on my truck (LLY) and it is not loud at all, barely any noticeable difference than stock.

if i am not mistaken dont you have to go with a 4in cat delete and then up to 5in the rest of the way. i didnt think anyone made a 5in cat delete pipe but i could be wrong

My sugestion would be to go with a 4" turbo back system. I lost no low end at all doing this on my 03 and loved the sound. We put a 4" Magnaflow turbo back on and the sound was awesome. If you just put a cat back on, then you won't have much more sound than with the stock system until WOT, then it would be half of what a turbo back will sound like. Does the truck even have a cat?When you put a cat back on a non california LB7 it's just as loud as a full system, they have no cat's.

well yes it has a cat i live in davis county utah it is required to have state emissions done but my buddy had a 99 power stroke he took there it had no cat and no muffler at all but altleast they didnt look he passed emissions tho he said that those years werent required to have a cat i aint never heard of that what have you guys heard about that the sysytem i was lookn at was a five inch cat back

When you put a cat back on a non california LB7 it's just as loud as a full system, they have no cat's.

That would be correct, seems all the trucks I have around here have cats so it's either turbo back or cat back. My opinion was of a Cal emissions truck with a cat in this case though, thanks for correcting me.

well yes it has a cat i live in davis county utah it is required to have state emissions done but my buddy had a 99 power stroke he took there it had no cat and no muffler at all but altleast they didnt look he passed emissions tho he said that those years werent required to have a cat i aint never heard of that what have you guys heard about that the sysytem i was lookn at was a five inch cat back

Nothing better than Clearfield, Utah. My Grandma lives there. :D 99 Powerstrokes didn't have cats, so he is ok, but you could have a cat and EGR so you should need the MBRP-T5024 kit.