Turbo sound - Chevy and GMC Duramax Diesel Forum

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post #1 of 13 (permalink) Old 08-28-2011, 05:32 PM Thread Starter
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Turbo sound

Does anyone know how this makes this noise, ive never heard anything like it, but i do think it sounds pretty cool. not my truck and not sure who it is.

2004 Chevy Silverado 2500HD LLY
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Kodiak MP
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post #2 of 13 (permalink) Old 08-28-2011, 05:38 PM
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Just efi tuning with an aftermarket turbo, probably.

NAME: JIMMY
CURRENT: 2006 Silverado 2500HD 4x4 crew cab (black), 20" chrome Diamo 16 Karat wheels wrapped with 32x11 Toyo Mud Terrains, 2" wheel spacers, Bilstein 5100 series shocks, Banks Ram-Air Intake, custom straight pipe exhaust w/5" tip, PPEI dsp5 tuned by Kory, Edge Insight moniter, 8k HIDs in head/foglights, Limo tint, 7" Pioneer Double-din, (2) Boss Phantom 12s in custom box, more coming soon...

SOLD:2002 CC/SB Duramax LS 4x4 LB7, Solid axle conversion, 14" lift, 20" XD Diesels (black), 39.5x16.5x20 Pitbull Rocker M/Ts, ATS E-power 160HP/360TQ Tune, Edge Attitude Moniter for Guages, Amsoil Custom Intake, PPE Boost Valve, Custom 5" Straight pipe, Limo Tint everywhere, HID 8k heads, Clarion 7" flip out, (2) 10" subs
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post #3 of 13 (permalink) Old 08-28-2011, 05:46 PM
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I've seen this one before. The turbo sounds so crazy like that because he has an open down pipe. My truck sounds almost just like that one but I don't have the zf6 so it doesn't spool up and down like that from the gear shifting

2004 sierra 2500hd
LLY slt 4x4
crew cab short box

295/75/17 cooper stt's on chrome H2s
leveled, 2" blocks in the rear, tie rod sleeves,

Diablosport Predator, AFE mouthpiece, Sinister egr delete, pcv reroute, LML drivers side manifold, ARP head studs, shimmed relief valve, exhaust dumped right after downpipe
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post #4 of 13 (permalink) Old 08-28-2011, 06:28 PM Thread Starter
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Quote:
Originally Posted by wannagofaster View Post
I've seen this one before. The turbo sounds so crazy like that because he has an open down pipe. My truck sounds almost just like that one but I don't have the zf6 so it doesn't spool up and down like that from the gear shifting
So he is basically running just and aftermarket downpipe? im planning on cutting my exhaust right before the cat and doing 5 in from there to right past the cab but with the stock dp and wanted to know if it would sound anything like this

2004 Chevy Silverado 2500HD LLY
5" Exhasut
Kodiak MP
Gauges
PCV reroute
EGR Block
DSP 2 duramax tuner
VOTERONPAUL2012
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post #5 of 13 (permalink) Old 08-28-2011, 07:22 PM
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My buddy with an LLY cut his whole exhaust off at the downpipe and it sounded sort of like this but not that extreme.. It has t be an aftermarket turbo or some efi tuning and running just a downpipe lol..

NAME: JIMMY
CURRENT: 2006 Silverado 2500HD 4x4 crew cab (black), 20" chrome Diamo 16 Karat wheels wrapped with 32x11 Toyo Mud Terrains, 2" wheel spacers, Bilstein 5100 series shocks, Banks Ram-Air Intake, custom straight pipe exhaust w/5" tip, PPEI dsp5 tuned by Kory, Edge Insight moniter, 8k HIDs in head/foglights, Limo tint, 7" Pioneer Double-din, (2) Boss Phantom 12s in custom box, more coming soon...

SOLD:2002 CC/SB Duramax LS 4x4 LB7, Solid axle conversion, 14" lift, 20" XD Diesels (black), 39.5x16.5x20 Pitbull Rocker M/Ts, ATS E-power 160HP/360TQ Tune, Edge Attitude Moniter for Guages, Amsoil Custom Intake, PPE Boost Valve, Custom 5" Straight pipe, Limo Tint everywhere, HID 8k heads, Clarion 7" flip out, (2) 10" subs
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post #6 of 13 (permalink) Old 08-29-2011, 03:15 PM
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Ok i just watched the video again and i the turbo sound is more intense than mine. Good call on the aftermarket turbo. With that said though the amount of turbo sound I get with my open down pipe is pretty wild. It's all i really hear when i'm driving.

2004 sierra 2500hd
LLY slt 4x4
crew cab short box

295/75/17 cooper stt's on chrome H2s
leveled, 2" blocks in the rear, tie rod sleeves,

Diablosport Predator, AFE mouthpiece, Sinister egr delete, pcv reroute, LML drivers side manifold, ARP head studs, shimmed relief valve, exhaust dumped right after downpipe
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post #7 of 13 (permalink) Old 09-08-2011, 02:22 PM
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my truck is true straight pipe with stock tubing from the stock downpipe and sounds kinda like that with what little is done to it but not that extreme

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post #8 of 13 (permalink) Old 09-08-2011, 02:26 PM
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It sounds like he has a Blow of valve kit on it or something, never heard one that loud
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post #9 of 13 (permalink) Old 09-10-2011, 10:21 AM
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sounds like the turbo is barking but why would it at such low rpms?

2006 2500HD LBZ CC EFILive DSP5
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post #10 of 13 (permalink) Old 12-22-2011, 07:31 PM
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Hes got a stock turbo if i do recall his discription. it is off the wall though.

06 GMC LILY 2500HD Pewter

Mods: LBZ reflash ecm, AFE cold air, resonator plugged, recon led tailights, silver window visors and bug deflecter, plastic liner, EFI live dsp5, MBRP 5" straight w/6"x18" tip, Kenwood 6.5" LCD

comming soon: debadge, suncoast V and converter, lift pump, studs, twins, headers and up pipes, plasti-dip black, spray liner, HID HL/FL, custom sub box, road armour bumps, drop steps, rims&rubber, interior bling, some other crap.
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