3" Overpipe Clearance issue

[Zee2413]

Originally Posted by Amputechture

Is your downpipe 3 inches? I hear lots of claims of huge 25+ gains from 2.5 to 3 but I have yet to see a dynograph that supports this. I was just looking at midnight23's build journal, he has a Greddy setup and his 2.5/3 inch overlay graph showed gains, but nothing in double digits, and only between the 5k to 6.5k area.

It is just the overpipe. It's the smallest exhaust section but does have a wicked bend. Thanks for the info, I will look up midnight23's build.


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[Amputechture]

Originally Posted by Zee2413

It is just the overpipe. It's the smallest exhaust section but does have a wicked bend. Thanks for the info, I will look up midnight23's build.


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Sure thing. I have a 3 inch downpipe, with a flange that tapers down to 2.5, followed by a 2.5 inch turboback. I had a hell of a time fitting my own overpipe I...I have no earthly idea how people fit a 3 incher in there.

[Zee2413]

Originally Posted by Amputechture

Sure thing. I have a 3 inch downpipe, with a flange that tapers down to 2.5, followed by a 2.5 inch turboback. I had a hell of a time fitting my own overpipe I...I have no earthly idea how people fit a 3 incher in there.

That's what I've been hearing man. Only Nameless and JDL have 3" overpipes for sale but Crawford I think has one for their turbo. Treadstone is the turbo I went with and they stopped supplying their 3" overpipe. Everyone is saying the overpipe fitting is a nightmare, sucks that they didn't design that area with more room.


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