how to get loud whistle sound on lb7

duramaxer · 10-05-2007, 08:51 PM

hellow im new to this so this might be a stupid ????......... i just bought a 03 2500 with the lb7 and i was wondering what should be my first step in moding it i really like that loud whistle sound that some diesel trucks give out anything will help thanks

**06duramaxkid** · 10-05-2007, 09:26 PM

straight pipe the exhaust an dput an intake on... usually ur best bet in getting the turbo whine that it sounds like ur after

mackthehack · 10-05-2007, 09:35 PM

like 06duramax said intake, straight pipe

**06duramaxkid** · 10-05-2007, 09:40 PM

Quote:

Originally Posted by mackthehack

like 06duramax said intake, straight pipe

yeah i had a staright pipe on my 06 made it sound like an airplane haha but if u like that sound then go for it... just go to youtube and serch for staright pipe duramax to see if u like the sound before you invest.. just my 2 cents

duramaxer · 10-06-2007, 01:42 AM

thanks alot for all the feed back is there certain brands i should go for ???? i know im getting the ppe hot e+2 but im not sure in what exhaust to get in debating on a 4" or a 5" and if i go 4 rbp or mbpr so what do you guys think ?

Kawtipping · 10-06-2007, 01:27 PM

Just an FYI, LB7's don't really get a loud whistle or whine with a stock turbo. I am still running the stock intake, but have a 5" exhaust. Other than getting a louder "growl", there wasn't much difference. The later engines with the variable vane turbos will give a completely different sound. I am sure with an after market intake the whistle will pick up some...but a different turbo would be the only way you will get that loud woosh, whine, or whistle that you are after.

duramaxer · 10-06-2007, 06:11 PM

what turbos will do that ?

**ob_1jr** · 10-06-2007, 07:07 PM

I have a pretty loud turbo whine with 4" MBRP turbo back (actually downpipe back) and AFE Stage II intake. With exhaust, it all depends on how much you want to spend since most of the exhausts out there are good. As far as bigger turbos, you can look at the aurora set-ups, but they aren't cheap. I would do the exhaust and intake and see how you like it.

**Maverick684** · 10-08-2007, 12:14 AM

I think the biggest part of the turbo whistle you hear is from the trucks that have VVT (variable vane turbos), 03-06 powerstrokes and 04.5-07 chevy's

duramaxer · 10-08-2007, 03:29 PM

do they make variable vane turbos for lb7 and if they do what brands make them ?/