Duramax Diesels Forum Truck of the Week
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Old 03-25-2011, 11:12 AM
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Default How to get more whistle

Hi new to the site and to the duramax world. Just wondered how to get more whistle out of the engine or if this turbo has a silencer ring that can be removed. Any tips ? Thanks
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Old 03-25-2011, 11:34 AM
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When I cut my airbox and put my exhaust on I noticed I got a lot more whistle from the turbo.
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Old 03-25-2011, 11:38 AM
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An aftermarket intake will make the turbo louder.. just be careful which one you buy, some with different size piping in the MAF area can require tuning (EFI live or HP tuners) to get your maf scaling

LLY/LBZ/LMM/LML trucks with variable vane turbos will get very loud through the exhaust when you get rid of the cat and muffler.

What year truck do you have?
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Old 03-25-2011, 11:43 AM
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I've heard piston return springs do wonders .... lose the cat and muffler
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Old 03-25-2011, 12:58 PM
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Let us know what year and engine generation you have, there are some different things you can do depending on the engine generation.
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Old 03-25-2011, 01:00 PM
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They have these tips you can put on for that WOO WOOOOO.


Sent from my iPhone.
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Old 03-25-2011, 02:03 PM
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The truck is a 2008. lmm i have a xrt and a dpf delete with a silverline exhaust. I dont no how to get thats info to appear on my msgs. Do those turbos have a silencer ring or no. i no my dodge did but not very educated on the duramax
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Old 03-25-2011, 02:10 PM
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No silence ring, your turbo should be plenty loud with an exhaust already???? How loud do you want it?? Maybe do the air box mod swiss cheese it and it will flow better.
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Old 03-25-2011, 03:17 PM
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metal intake tubing will make the whistle louder as well
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Old 03-26-2011, 07:12 PM
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I would get a drill instructor's whistle and tape it to the insidde of the intake... That biotch will be loud
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"SARGE" 1966 Jeep/Kieser M35a2 duece, white whistler multi fuel engine, striaght pipe, fuel screw 1/4 turn, 1 tooth advance on injection pump, 6x6 pure beast mode all 3 axle lockers waiting for install.
"Rusty Bullet" 2007 Classic CCSB, 1 LT, Greystone 4X4, Cognito, EFI, tuned by McRat/Neens, DSP by Mike Meyer, PPE stuff, Autometer, Trippin, Airdog, MBRP, Bilstein, Hankook, TransGo Jr SOLD at 90k BENT REAR AXLE SEIZED BEARINGS GM WARRANTIED 437 hp 1051tq STOCK TRANS
"Tow Pig" 2003 LB7/Alli EC/LB 2x4 a lot of miles and a lot more injectors, 4" straight, cts, EFI, rust, dents, scratches, deer guts
"Squirel" 2000 Chevy Silvy 1500 RC/SB 5 speed 4.8 little screamer back to stock, had polished 243's ls6 intake cam and valve train
"Great White Hope" 2013 silverado 1500 z71 CCSB loaded Corsa Exhaust, gmpp intake, leveled, 5.3 HO
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  #11  
Old 03-26-2011, 07:17 PM
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get a cheetah...problem solved! mine whistles like a mofo its almost to much at a certain point. long drives kind of get annoying
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Old 03-26-2011, 07:50 PM
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Anyone driving near my shop with a cheeta will be shot. I would rather listen to 2 skeletons screwing on a tin roof then a cheeta.
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Old 03-26-2011, 07:56 PM
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Quote:
Originally Posted by Mike L. View Post
Anyone driving near my shop with a cheeta will be shot. I would rather listen to 2 skeletons screwing on a tin roof then a cheeta.


The whistle from my stock LBZ is wicked for a stocker somehow... Cheetah or similar is on my list of upgrades (want MORE WHISTLE and power)... Guess if I come to CA I won't be able to drop by?
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Old 03-27-2011, 07:29 AM
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Quote:
Originally Posted by Mike L. View Post
Anyone driving near my shop with a cheeta will be shot. I would rather listen to 2 skeletons screwing on a tin roof then a cheeta.
glad i'm on the east coast...
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Old 03-27-2011, 08:17 AM
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Quote:
Originally Posted by Cougar281 View Post

The whistle from my stock LBZ is wicked for a stocker somehow
X2 , mine was awful before I replaced my downpipe.
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