how to get more whistle???? - Chevy and GMC Duramax Diesel Forum

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post #1 of 17 (permalink) Old 05-25-2007, 08:33 PM Thread Starter
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how to get more whistle????

Wanna a little more whistle on a LBZ without straight piping it. Cold air kit maybe? Need tips to get more whistle. Thanks in advance
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post #2 of 17 (permalink) Old 05-25-2007, 09:25 PM
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a cold air intake will help a little, but to really make it scream, you need to either straight pipe the truck or put a bigger exhaust on it.

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post #3 of 17 (permalink) Old 05-25-2007, 10:02 PM
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My lbz whistles pretty good with my silverline 4" on there. Haven't put an intake on there yet but soon.

"You can't stop a bad guy with your middle finger and a bag of quarters."

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post #4 of 17 (permalink) Old 05-29-2007, 11:17 AM
 
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good read buddy
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post #5 of 17 (permalink) Old 05-30-2007, 02:24 PM Thread Starter
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Cool. Thanks guys
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post #6 of 17 (permalink) Old 06-08-2007, 08:14 PM
 
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My 2001 Dodge Cummins had a silencer ring in the turbo. It was more or less just a big snap ring. I took that out and it really made a big difference. I don't know if the Duramax has that or not and I haven't had the time yet to check.
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post #7 of 17 (permalink) Old 06-08-2007, 08:39 PM Thread Starter
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yea ive heard that about the CTD turbos but Im not sure about the Duramax turbos

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post #8 of 17 (permalink) Old 06-09-2007, 02:15 AM
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Duramax does not have that silencer ring. I wish it was that easy on our trucks to get more whistle. Mine whistles pretty good with the AFE stage II and 4" exhaust....Although, mine is an LB7. I did hear a LBZ that was straight piped (pretty sure anyway) and it sounded awesome! I only heard it in Walmart's parking lot.

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Extang Blackmax Tonneau
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X-pel clear bra
295/60-20 Toyo Open Country A/T II

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post #9 of 17 (permalink) Old 11-22-2008, 09:53 AM
 
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Question

I've straight piped my 06 2500 Hd but how do you get by smog inspection with out the catalytic converter? I'd love to do a complete system with out it, I'm running the Edge Juice with attitude and it is OUTRAGEOUS in #5 but not alot of Turbo sound except when the waste gate is opening, What kind of Breather is best and won't set off my Computer?
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post #10 of 17 (permalink) Old 11-22-2008, 10:23 AM
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You'll just have to keep the stock system for smog inspection. Careful with that Edge on 5. Your tranny won't like you. It's not a wastegate, it's vanes opening and closing. It's a variable vane turbo and the vanes open and close with the tuning. Get a dry filter. K&N's fluid will suck out of the filter and pulg up the MAF sensor.

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