Turbo horns for a lb7 - Chevy and GMC Duramax Diesel Forum
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post #1 of 11 (permalink) Old 05-11-2012, 09:58 AM Thread Starter
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Turbo horns for a lb7

I am new to this Diesel thing so could someone explain the turbo horn to me and what and if it would benefit me I have all stock besides a edge w/additude?

2002 GMC 4x4 Sierra LT Crew Cab
Edge juice with attitude, 30% tint to match the back, Rhino liner, Clarion DVD flip out with navigation, (2) 10" Polk audio subs with a Sub thump behind the seat box powered by a Rockford fosgate 750w amp.
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post #2 of 11 (permalink) Old 05-11-2012, 10:15 AM
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I know this lil place you can buy one

DRP LB7 Intake Horn for 2001-2004 LB7 GM Duramax

You will get a little faster spool up, a lil more boost, lil more turbo whistle and a slight drop in egts with one.
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post #3 of 11 (permalink) Old 05-11-2012, 10:32 AM
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Its a cheap must have mod for any stock turbo LB7, made a big difference in my truck as far as spool goes, and it makes cool whistle noises.

2001 Chevy ECSB

SCIV 1056 MBRP 4" Kennedy lift pumps EFI live by Jeff Toman. Industrial Injection Silver Bullet 66.
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494/956 stock charger
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post #4 of 11 (permalink) Old 05-11-2012, 10:49 AM
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I had one on my old LB7... defitenally worth the time to do it!

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2007.5 GMC 2500HD Crew Cab DURAMAX

MODS - EGR Blocker Plate, 5" Flo~Pro No Muffler Exhaust, DPF Delete, EFI, DSP5 Switch, TransGo JR. Tuned by Idaho Rob

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post #5 of 11 (permalink) Old 05-11-2012, 01:10 PM
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How big is the tube on the stock intake horn?

2002 Chevy 2500HD ccsb mostly stock...
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post #6 of 11 (permalink) Old 05-11-2012, 01:12 PM Thread Starter
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Are they hard to do and is it really load whistle in the cab?

2002 GMC 4x4 Sierra LT Crew Cab
Edge juice with attitude, 30% tint to match the back, Rhino liner, Clarion DVD flip out with navigation, (2) 10" Polk audio subs with a Sub thump behind the seat box powered by a Rockford fosgate 750w amp.
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post #7 of 11 (permalink) Old 05-11-2012, 01:16 PM
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It has 3 10mm bolts that hold it to the turbo, mine is Federal emissions so it was easy, but the Cali trucks are a bit more of a PITA. Yes the whistle is alot more noticeable in the cab.

2001 Chevy ECSB

SCIV 1056 MBRP 4" Kennedy lift pumps EFI live by Jeff Toman. Industrial Injection Silver Bullet 66.
12.65 @ 105 stock charger
494/956 stock charger
523/1084 something is wrong.

www.extremeprejudiceracing.com
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post #8 of 11 (permalink) Old 05-11-2012, 01:17 PM
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Stock vs. ported

2001 Chevy ECSB

SCIV 1056 MBRP 4" Kennedy lift pumps EFI live by Jeff Toman. Industrial Injection Silver Bullet 66.
12.65 @ 105 stock charger
494/956 stock charger
523/1084 something is wrong.

www.extremeprejudiceracing.com
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post #9 of 11 (permalink) Old 05-11-2012, 01:20 PM Thread Starter
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Ya I haul my 2 German shepherds and the wife just not sure if they would like it

2002 GMC 4x4 Sierra LT Crew Cab
Edge juice with attitude, 30% tint to match the back, Rhino liner, Clarion DVD flip out with navigation, (2) 10" Polk audio subs with a Sub thump behind the seat box powered by a Rockford fosgate 750w amp.
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post #10 of 11 (permalink) Old 05-11-2012, 01:26 PM
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Its not horribly high pitched like a cheetah or anything, just makes the current noise a bit louder

2001 Chevy ECSB

SCIV 1056 MBRP 4" Kennedy lift pumps EFI live by Jeff Toman. Industrial Injection Silver Bullet 66.
12.65 @ 105 stock charger
494/956 stock charger
523/1084 something is wrong.

www.extremeprejudiceracing.com
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