Making My own 3" DP

specd_out · 2008-10-21 22:45:57

I am considering doing my own 3" dp to go from my turbo to my cut-out. I am going to have my buddy do the welding. I was just wondering what are some good sites to get some piping & what kinda bends you guys recomend. I know I need a tight 90 at the turbo and a 90 at the bottom. I have seen some pics where its pretty much a stright pipe right down and some that have a few bends. Pics would be a great help.
BTW I have a a first gen fi-r kit which from my research shold have a protech manifold. I dunno for sure

RJCornine · 2008-10-21 22:49:12

is a 3" downpipe even benificial with a cutout?

specd_out · 2008-10-21 22:52:27

For my future plans, yes

omar · 2008-10-21 22:53:52

i wouldnt put the exuast cutout on the down pipe, i would instead on the test/mid pipe pipe that follows it, you might catch shit on fire lol,a nd you want that thing pointing to the ground

specvturbo508 · 2008-10-21 22:57:04

dude just break out the black sharpy and start eye balling, http://stores.ebay.com/Mandrel-Bending-Solutions

here you go, get extra just in case you fuck up, this is what I did.

specd_out · 2008-10-21 23:04:21

omar wrote:
i wouldnt put the exuast cutout on the down pipe, i would instead on the test/mid pipe pipe that follows it, you might catch shit on fire lol,a nd you want that thing pointing to the ground

o yea thats where it is now I want to do 3" to that point and then its my greddy the rest of the way

omar · 2008-10-21 23:05:40

yeah man, you dont want it on the down pipe hahaha, shit would catch on fire lol

i was gonna do one the sam way you are right now, but i figured fuck it, and im just gnna do 3" all the way

specvturbo508 · 2008-10-21 23:07:59

I miss my Greddy exhaust so much but it's like a tournaquette

RJCornine · 2008-10-21 23:08:20

i have my cutout on my midpipe as well but i swear it pulls 10 times harder with just my 3" all the way back than it does with the cutout open.. i have tunes for both.

specd_out · 2008-10-21 23:41:01

I just cant stand the sound with a 3" all the way back. and inorder for it to be as quiet as I want it I would have too many res on it and would just defeat the purpose. I have the e-cutout so it takes 4 sec to switch between super quiet with the greddy to all out power with it open. What I am afraid off is that with my luck one of the pipes will be slightly off and will need to be bent some more and will just fuck me up. I know I worry way to much

anyways pics would really help if anyone has any. I am a visual kinda guy.

Red_Spec · 2008-10-21 23:42:37

i buy almost all my machine and metal working shit from McMaster Carr http://www.mcmaster.com/

They have everything

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Making My own 3" DP

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omar wrote:

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