Need a down pipe

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Aug 5, 2007 | 11:42 AM

wisemanonice

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From: Ft. Hood

Need a down pipe

Im goint to get the gmpp manifold and I already have the sport exaust. I was wondering what kind and size down pipe I should get.

Aug 5, 2007 | 11:46 AM

RedEcotecSS

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From: North Carolina

i vote ZZP. just replace the bolts they send with it. lol

Aug 5, 2007 | 11:53 AM

wisemanonice

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From: Ft. Hood

what size is it? and whats wrong with the bolts?

Aug 5, 2007 | 11:56 AM

RedEcotecSS

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From: North Carolina

not sure what size it is, but the bolts that it come with are weak and tend to snap.. mine did... just replaced them, now i love it.

Aug 5, 2007 | 12:09 PM

Jmc007

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From: Quebec City, Quebec

There is a nice 2,5" DP right there which have a Metallic catalyst convertor, thus will outflows ceramic convertor and will be more resistant to fouling :

https://www.cobaltss.net/forums/rebel-auto-worxs-146/our-web-site-products-68543/

Aug 5, 2007 | 12:29 PM

wisemanonice

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From: Ft. Hood

Quote:

Originally Posted by Jmc007

thats nice! i might have to get that after I get some more cash. Have you heard anything about how it sounds?

Aug 5, 2007 | 03:56 PM

Johnboy12358

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From: DFW, TX

I would suggest looking into the ZZP Header/Downpipe combo if you are going to get a manifold and downpipe....
http://www.zzperformance.com/cobalt_...=545&catid=155

Aug 5, 2007 | 05:26 PM

wisemanonice

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From: Ft. Hood

I heard zzp wasnt sending something that had to do with the o2 sensor. Is that true? How is vibrant?

Aug 5, 2007 | 07:39 PM

Johnboy12358

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From: DFW, TX

They didnt on the first run, they sent them separately, its not a problem now. I am going to order that set up this week probably

Aug 5, 2007 | 10:40 PM

#10

ebristol

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From: WI

Quote:

Originally Posted by wisemanonice

Im goint to get the gmpp manifold and I already have the sport exaust. I was wondering what kind and size down pipe I should get.

Don't waist your money. Your GMPP sport exhaust is the most restrictive part of your exhaust system.

You wont see any gains.

Here is a really good thread to read about exhaust flow rates.

https://www.cobaltss.net/forums/show...ns#post1293837