Pontiac Firebird 1967-2002 Birds of a feather flock together

Need exhaust help...

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Old 02-25-2013 | 01:26 PM
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Default Need exhaust help...

Ok my 2002 WS6 has a custom exhaust my Mechanic made and installed for me. The problem is its choking my motor and this is not cool.I have a 408 I don't want ruined. I'm looking at some exhaust system's but I'm having a hard time deciding what to get. I don't want my car ridiculously loud.. I like it loud don't get me wrong but I also like to hear my music. So some input on what I should look at would be appreciated.
Old 02-25-2013 | 04:24 PM
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I would do 3" True Duals with a 3" X pipe to begin with. I think a 3" magnaflow would sound reaaal good or a GGMG.
Old 02-25-2013 | 04:33 PM
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Hey ty i will check them out online...
Old 02-25-2013 | 04:44 PM
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Personally I went with a 3" X with 4x12 cherrybomb glasspacks. Sounds pretty good and not too much drone while driving and it sounds like a bat out of hell during WOT.
Old 02-25-2013 | 04:46 PM
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I have a Borla unadjustable I'm looking to sell if I can get my hands on a Borla Adjustable for the right price, heres what it sounds/looks like. Not my car or my video just an example I found.
Old 02-25-2013 | 05:26 PM
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Originally Posted by AmnSF
Personally I went with a 3" X with 4x12 cherrybomb glasspacks. Sounds pretty good and not too much drone while driving and it sounds like a bat out of hell during WOT.
That's awesome but way to loud for me... bet it sounds beast though.
Old 02-25-2013 | 05:29 PM
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Originally Posted by Firebird-guy
I have a Borla unadjustable I'm looking to sell if I can get my hands on a Borla Adjustable for the right price, heres what it sounds/looks like. Not my car or my video just an example I found. http://youtu.be/b7fIkNEKvkE
That sounds good.
Old 02-25-2013 | 05:30 PM
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Get the Magnaflow exhaust system, Perfect balance between sound and performance.


Last edited by TransAmBlue; 02-25-2013 at 05:37 PM.
Old 02-25-2013 | 05:42 PM
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Ok so i also have..... AFR heads, One off isky cam, Jethot brand longtube headers, Moser 9inch rear. And a other mods to. so I still have a torque arm on my drivers side even with the 9 inch which makes for no clearance on drivers underbelly... and on top of all that i don't want it so loud i cant think. Sooooo?? Ugh stressing lol
Old 02-25-2013 | 05:45 PM
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I have had a lot of people suggest Magnaflow...
Old 02-25-2013 | 06:01 PM
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Put the magnaflow on and maybe i'll date you........
Old 02-25-2013 | 07:32 PM
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Originally Posted by TransAmBlue
Put the magnaflow on and maybe i'll date you........
I will check out the Magnaflow and lmao cute...good thing im not with my ex anymore cuz he gets on hear. Lol
Old 02-25-2013 | 10:11 PM
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Hey Sunset, welcome to LS1tech!

I also have a cat-back Magnaflow exhaust. It's pretty quiet to me but it does sound nice.

Why do you say your exhaust is choking your motor? What is it that your mechanic made?

Are there any other modifications to this car?
Old 02-26-2013 | 12:12 AM
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Here's mine, a little Loud but maybe if you got a 9 in bullet instead of the 6 I got it wouldn't be as loud? I have Hooker lt and 3in Summit x pipe dumped just in front of rear axle

Old 02-26-2013 | 12:34 AM
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Originally Posted by Paul Bell
Hey Sunset, welcome to LS1tech!

I also have a cat-back Magnaflow exhaust. It's pretty quiet to me but it does sound nice.

Why do you say your exhaust is choking your motor? What is it that your mechanic made?

Are there any other modifications to this car?
Hey ty! its choking it because he used 2 and 1/2 inch pipe and put a stock cat back on it. I asked him to tone it down a bit cuz when i was racing the car i had a custom h pipe style setup dumping at the axle. But he took what i said a little to literally good thing we have bin buds 18years... im worried its going to detonate my motor..Im also putting all my light weight mods back in lol. Ac, front bumper support, back seats and a tone more stuff i had yanked out lol. Thankfully I kept everything I took out over the years. Yes I do have more mods done then what I shared. I tend to not share everything due to nit picking in the past on sights i use to be on. I put my blood sweat and tears into my car not to mention breaking my pocket doing it. And also had some great people contributing there own time to help out also
Old 02-26-2013 | 12:38 AM
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Originally Posted by Mr Phil
Here's mine, a little Loud but maybe if you got a 9 in bullet instead of the 6 I got it wouldn't be as loud? I have Hooker lt and 3in Summit x pipe dumped just in front of rear axle

http://youtu.be/ZzzqLVFemMU
That sound good but how dose it sound in the car?
Old 02-26-2013 | 01:36 AM
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Originally Posted by Sunset WS6 girl
That sound good but how dose it sound in the car?
When windows are rolled up u can definitely tell its dumped at the axle, you have a little in cabin vibration just from the exhaust but it's not a ridiculously loud drone, when the windows are rolled down or if you have the T top of the vibration goes away but you can definitely hear the exhaust so it a little sacrifice but I can still hear my music and have a conversation without any issues or blowing out my ear drums lol :-)
Old 02-26-2013 | 06:02 AM
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Originally Posted by Mr Phil
When windows are rolled up u can definitely tell its dumped at the axle, you have a little in cabin vibration just from the exhaust but it's not a ridiculously loud drone, when the windows are rolled down or if you have the T top of the vibration goes away but you can definitely hear the exhaust so it a little sacrifice but I can still hear my music and have a conversation without any issues or blowing out my ear drums lol :-)
Lol no blown ear drums are always a good thing. And ty much
Old 02-26-2013 | 11:25 AM
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Check out the Hooker Aerochamber catback. It is one of the quieter exhausts and still flows well.
Old 02-26-2013 | 04:30 PM
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Originally Posted by Sunset WS6 girl
I will check out the Magnaflow and lmao cute...good thing im not with my ex anymore cuz he gets on hear. Lol
oh boy


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