up pipe info needed?
 

on an aftermarket up pipe for a subaru , how may inche's thick the up pipe 3 or 2.5 inche's? the reason why im asking is im going to make my own up pipe by blue printing a stock one getting some 304stainless steel and make my own. so i need to know i thick of steel tubing im going to have to get. so pros and cons. if you have them give them to me. ideas? please be sure to put them down to.. if you help thanks alot.. mike:banana: :banana:

half in flanges for sure, ummm the whole measurement thing is a wonder to me also.. people just buy it and plug it in.. LoL

well the flanges won't be a problem because i can blue print them off a stock up pipe i need the aftermarket hole size is about all i need the rest would come from the stock up pipe.:D

mic the inlet size on the turbo

u do know people sell used uppipe for around 100 bucks for a flex and even less 70-80 for a non-flex??


maybe that would just save u the trouble instead

like Scott@S-Squared said:

use the inlet on the turbo as a template. the overall DIA of the pipe will be larger depending on the thickness of steel used, but as long as the inside DIA of the pipe is no larger and no smaller than the inlet on the turbo, you should be fine. I also considered having some made (very inexpensive to produce after you have one mocked up) but it seems that no matter how good they are, unless you have a reputable name to slap on it, people wont buy it. I mean take HKS up-pipes for example, they are not the best quality, but they sell like hot cakes. Having the flanges CNC machined should be no problem, and mandrel bend pipe is cheap. the initial setup would cost some bank, unless you have access to the CNC machinery etc. good luck, post pics when you get it done!

thanks for the info.. i was a welder for the US ARMY so most of the work is going to be done by me if i can get access to my tools.why i say that is because im a weekend warrior now so i don't have acesses all the time..