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Old 03-05-2005, 05:03 AM
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Exhaust makes 'popping' noise when i let off the gas

I have flow masters and when i'm like easing off the gas or going down a hill while leaving it in gear the exhaust makes a loud popping noise like their is combustion on every few rpms.
I have flowmasters on it. What could it be?
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Old 03-05-2005, 05:08 AM
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Re: Exhaust makes 'popping' noise when i let off the gas

Mine does the same thing sometimes.
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Old 03-05-2005, 05:13 AM
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Re: Exhaust makes 'popping' noise when i let off the gas

do you have custom muffler or stock?
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Old 03-05-2005, 05:15 AM
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Re: Exhaust makes 'popping' noise when i let off the gas

flo master
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Old 03-05-2005, 05:16 AM
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Re: Exhaust makes 'popping' noise when i let off the gas

My guess is that its just the way the chamber for the exhaust is. Mine stock never did it till i got the flowmaster on it
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Old 03-05-2005, 05:34 AM
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Re: Exhaust makes 'popping' noise when i let off the gas

wonder if any other 6'ers have same problem with it, you have 3.8 right?
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You know he's cruisin in the GN above us - RIP, Andy
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Old 03-05-2005, 05:37 AM
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Re: Exhaust makes 'popping' noise when i let off the gas

no 5.7 ls1
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Old 03-05-2005, 05:47 AM
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Re: Exhaust makes 'popping' noise when i let off the gas

....so you say....

jp..

Hmm maybe its flo masters design? do you have 2.5" or 3"?
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Old 03-05-2005, 05:58 AM
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Re: Exhaust makes 'popping' noise when i let off the gas

I think its 2.5in I dont remember. But i do agree i think it is flowmasters design of the chamber that causes the as geno would put it the pooping sound
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Old 03-05-2005, 08:38 AM
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Re: Exhaust makes 'popping' noise when i let off the gas

its normal mines doe it as well i dont like it though at all, thats why im changing it soon.
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Old 03-05-2005, 08:49 AM
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Re: Exhaust makes 'popping' noise when i let off the gas

Philly what are you going to get?
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Old 03-05-2005, 09:29 AM
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Re: Exhaust makes 'popping' noise when i let off the gas

My Magnaflow does it I believe it's from loss of [some] backpressure, i have 3". I know loudmouths can do it too on LS1s at least.
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Old 03-05-2005, 12:05 PM
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Re: Exhaust makes 'popping' noise when i let off the gas

is it a pop or a crackle? because mine is more of a crackle....
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Old 03-05-2005, 12:06 PM
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Re: Exhaust makes 'popping' noise when i let off the gas

is it a pop or a crackle? because mine is more of a crackle....
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Old 03-05-2005, 12:13 PM
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Re: Exhaust makes 'popping' noise when i let off the gas

nice double post
mines like a series of popping if im accelerating heavy and let right off
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97 Camaro - 2.077 60', 14.745 @ 92.20 - still down, one year later.

194k miles-160* thermo-V8 shocks/springs (V6 rear springs)-3" Magnaflow !cat (3" dynomax bullet) back-SLP CAI-stock boxed LCAs-poly tranny mount and torque arm bushing-custom HPTuners tuning-4.10s/eaton/TA girdle-3.5" alum DS-spohn LCA brackets-prostar skinnies

179.75 RWHP, 204.52 RWTQ

ON ITS WAY: MORE

R.I.P. Andy

87 Benz 190e - DD

01 EX250 - still gotta get my license for this thing
 
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