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Old Dec 5, 2010 | 04:49 PM
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So while the car is parked for the winter I want to come up with the best exhaust for the GXP. I was going the magnaflow catback but after looking at our exhaust and having did custom exhaust with my old camaro and a S10 project this looks like a walk in the park. My idea is 3" right off the down pipe, no cat or resontor, use all stock hangers/brackets. The part I need the help on is the mufflers and tips. I have read most of the post on mufflers and watch the youtube clips but if anyone has any ideas that might be worth while let me know. For the exhaust tips I am also looking for ideas so post away.
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Old Dec 5, 2010 | 04:56 PM
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That's the same setup I'm doing except I'm running single exhaust. Probably gonna use a Borla Muffler. SLP has a 3" to 2.5", if you go that route (any 3" to 2.5" muffler) I'll have spare MagnaFlow tips that will need to be stripped and polished that you can have.
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Old Dec 5, 2010 | 05:05 PM
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I wouldn't have anything but Spintech.
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Old Dec 5, 2010 | 05:34 PM
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JP I am definitely interested in the tips as I really do like the tips on the magnaflow systems.

AlabamaGuy did you just replace your mufflers with the spintecks?
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Old Dec 5, 2010 | 06:04 PM
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straight pipes. im putting a piece of pipe thru each of my mufflers so it looks like i still have them lol
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Old Dec 5, 2010 | 06:28 PM
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When I just had a cut out I hated the sound. Rasp is bad...
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Old Dec 5, 2010 | 08:42 PM
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i just dont see the magnaflow set being worth the price when you could probably have something custom done for around the same price, without having to hack and slash like i did ... if youre having trouble choosing mufflers and tips, search for silverados with the 5.3 on youtube, they have close to the same sound so you can get a rough idea of different mufflers or set ups



do tips under a few inches really change the exhaust sound ??
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Old Dec 5, 2010 | 09:19 PM
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I'm perfectly happy with my pieced together 3" system, except it's too loud in the car. Of course, It's turned down under the trunk....
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Old Dec 5, 2010 | 09:30 PM
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Try open under the passenger seat.
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Old Dec 5, 2010 | 10:41 PM
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i prefer open on the DP lol
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Old Dec 5, 2010 | 10:52 PM
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Originally Posted by DP 08 GXP
i prefer open on the DP lol
Is it not ridiculously poppy and obnoxious like it was on mine? At first it was cool but then the novelty began to wear off.
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Old Dec 6, 2010 | 07:20 AM
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im gonna go with stock piping with my stock cat, res delete with a dynomax bullet in the resenators place, then take the stock mufflers off and put pipe there with some single tips from jones to fill the bumper. hoping it should sound good
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Old Dec 6, 2010 | 09:01 AM
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94ss06gxp i considered the bullets as I had them on my camaro awhile back. Very loud especially in the upper rpm. I look forward to hearing it when you get it together
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Old Dec 6, 2010 | 09:47 AM
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Originally Posted by ohyeahjay
94ss06gxp i considered the bullets as I had them on my camaro awhile back. Very loud especially in the upper rpm. I look forward to hearing it when you get it together
should be next month, im hoping with the cat on still that it doesnt get too loud.
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Old Dec 6, 2010 | 10:40 AM
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I'm gonna try to get some new, better open exhaust videos today.
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Old Dec 6, 2010 | 10:45 AM
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Does anyone have a video of just a res delete?
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Old Dec 6, 2010 | 11:16 AM
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Originally Posted by Adamcc91
Does anyone have a video of just a res delete?
its not even a difference enough to notice on video
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Old Dec 6, 2010 | 12:37 PM
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Mine won't be finished until spring either...

DT headers
No Cat
No Res
Dynomax ultra-flow mufflers
Unknown tips

Everything will be 3 inch. I have a guy that is going to weld all the piping, not a problem at all with fitment. If the drone is too bad I was going to put a bullet in place of the res.

Also, open to tip suggestions.
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Old Dec 6, 2010 | 02:59 PM
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http://www.youtube.com/watch?v=En1pc4-YP2E

http://www.youtube.com/watch?v=GoPlwZ7i3us
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