DP & Exhaust Feedback
08-20-2009, 10:12 AM
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DP & Exhaust Feedback
So, looking under my car I noticed that the stock downpipe pinches down to 2in at the O2 bung, and the pipe over the axel goes to 2 1/4. The whole exhaust system is in damn good shape.
Here's what I want some feedback on..
I figured I could probably buy a 2.5 DP that doesn't pinch down to 2in at the o2 bung, and buy a new muffler and bend a new pipe for over the axel so that it's 2.5 the entire way through, instead of paying 700 for a magnaflow, or 400 for the SLP and risk getting tickets for noise.
I figured that if I could pull this off, and be able to have a decent exhaust system for cheap, it might help out the folks here.
Any one have some advice, feedback, ideas and etc. before I begin this little project?
Here's what I want some feedback on..
I figured I could probably buy a 2.5 DP that doesn't pinch down to 2in at the o2 bung, and buy a new muffler and bend a new pipe for over the axel so that it's 2.5 the entire way through, instead of paying 700 for a magnaflow, or 400 for the SLP and risk getting tickets for noise.
I figured that if I could pull this off, and be able to have a decent exhaust system for cheap, it might help out the folks here.
Any one have some advice, feedback, ideas and etc. before I begin this little project?
08-20-2009, 10:31 AM
#3
So, looking under my car I noticed that the stock downpipe pinches down to 2in at the O2 bung, and the pipe over the axel goes to 2 1/4. The whole exhaust system is in damn good shape.
Here's what I want some feedback on..
I figured I could probably buy a 2.5 DP that doesn't pinch down to 2in at the o2 bung, and buy a new muffler and bend a new pipe for over the axel so that it's 2.5 the entire way through, instead of paying 700 for a magnaflow, or 400 for the SLP and risk getting tickets for noise.
I figured that if I could pull this off, and be able to have a decent exhaust system for cheap, it might help out the folks here.
Any one have some advice, feedback, ideas and etc. before I begin this little project?
Here's what I want some feedback on..
I figured I could probably buy a 2.5 DP that doesn't pinch down to 2in at the o2 bung, and buy a new muffler and bend a new pipe for over the axel so that it's 2.5 the entire way through, instead of paying 700 for a magnaflow, or 400 for the SLP and risk getting tickets for noise.
I figured that if I could pull this off, and be able to have a decent exhaust system for cheap, it might help out the folks here.
Any one have some advice, feedback, ideas and etc. before I begin this little project?
i replaced my stock muffler with a gmpp touring muffler, and replaced the 2.25" section over the axle. i felt a nice little bump in top end power by doing this. not to mention the lovely sound the touring muffler produces.
08-20-2009, 10:46 AM
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just so you know the stock ss/sc downpipe is 2.75". i know it has its dimples and neckdowns, but for the most part it is 2.75". i don't know what mods you have, but i would go with a 3" downpipe over a 2.5" downpipe.
i replaced my stock muffler with a gmpp touring muffler, and replaced the 2.25" section over the axle. i felt a nice little bump in top end power by doing this. not to mention the lovely sound the touring muffler produces.
i replaced my stock muffler with a gmpp touring muffler, and replaced the 2.25" section over the axle. i felt a nice little bump in top end power by doing this. not to mention the lovely sound the touring muffler produces.
I currently don't have any mods. I just bought my SS/SC a couple weeks ago, and I'm just making future plans (once i get my financial aid =D)
08-20-2009, 11:22 AM
#5
Thanks for the tip. My bro' works at a muffler shop, and said it was about 2in at the o2. I would only imagine that it restricts air flow pinching down to that much. I'll probably go with 3.0 though, if that's the case.
I currently don't have any mods. I just bought my SS/SC a couple weeks ago, and I'm just making future plans (once i get my financial aid =D)
I currently don't have any mods. I just bought my SS/SC a couple weeks ago, and I'm just making future plans (once i get my financial aid =D)
08-20-2009, 06:16 PM
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If your doing all that then you'll want to change the front of the cat back( the flange to the down pipe) that is only about 2 1/8" opening. Heres a link to the thred i made when i changed mine, crapy pics but you can see one or two layers of pipe at the opening mesuring 2 1/8"
https://www.cobaltss.net/forums/pictures-videos-64/new-cat-back-borla-175114/
https://www.cobaltss.net/forums/pictures-videos-64/new-cat-back-borla-175114/
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