#94531, "Making own downpipe help" Apr-13-06 11:19 AM by eclipseman1999
Can someone tell me the sizes and how many peices you used to make a 2.5 downpipe. I figured 2.5 would be easier than 3in and I would rather save the money and buy the peices and have them welded.
Shawn 99 Eclipse RS Hahn Stage 2,Full built bottom end with je 8:8 and eagle rods ect..
#94532, "RE: Making own downpipe help" In response to Reply # 0
Originally posted by eclipseman1999 Can someone tell me the sizes and how many peices you used to make a 2.5 downpipe. I figured 2.5 would be easier than 3in and I would rather save the money and buy the peices and have them welded.
I used a 2.5" mandral U-Bend, which had pretty long ends on it, and just cut and welded that to my liking.
-Chris 1999 Eclipse T-GS 2.4 Project is Officially underway
#94533, "RE: Making own downpipe help" In response to Reply # 1
Originally posted by GSGoinFast
Originally posted by eclipseman1999 Can someone tell me the sizes and how many peices you used to make a 2.5 downpipe. I figured 2.5 would be easier than 3in and I would rather save the money and buy the peices and have them welded.
I used a 2.5" mandral U-Bend, which had pretty long ends on it, and just cut and welded that to my liking.
What was the total size of the u-bend and where did you get it?
Shawn 99 Eclipse RS Hahn Stage 2,Full built bottom end with je 8:8 and eagle rods ect..
#94535, "RE: Making own downpipe help" In response to Reply # 3
Originally posted by fly1 You can might be able to stop by a local muffler shop to pick some up. Some shops will sell it you. If not, you could get them from www.Summitracing.com I used: 1 90 bend, 1 flex joint section, about a two foot straight pipe & 2 flanges (unless you're going to use clamps).
I'm terribly sorry, I only made half a downpipe and I completely forgot lol. You will need more then just 1 U-Bend to go all the way to the cat. But I got my pipes from summitracing I believe.
-Chris 1999 Eclipse T-GS 2.4 Project is Officially underway
#94539, "RE: Making own downpipe help" In response to Reply # 5
Will you be using the 's' downpipe piece that came with the HRC kit (according to your sig)? It will be a little easier to do a 3" dp that connects to the HRC piece. Just get a transition to 3". If you're going to fabricate a 3" dp beginning at the turbo exhaust side, then that will be a bit tricky. You'll need to find the right bend piece -- probably a "donut" pipe & match it up to a partial 'j' bend. I thought about making one just for kicks, but I didn't have enough 3" bends laying around.
___________ Kon C
"Sometimes, a man has to do what a man has to do."
#94555, "RE: Making own downpipe help" In response to Reply # 6
Originally posted by fly1 Will you be using the 's' downpipe piece that came with the HRC kit (according to your sig)? It will be a little easier to do a 3" dp that connects to the HRC piece. Just get a transition to 3". If you're going to fabricate a 3" dp beginning at the turbo exhaust side, then that will be a bit tricky. You'll need to find the right bend piece -- probably a "donut" pipe & match it up to a partial 'j' bend. I thought about making one just for kicks, but I didn't have enough 3" bends laying around.
Kon i just picked up some stainless from IPS motorsports locally, I'm sure they will give you a good deal. I'm making my dp for pretty cheap and having it tig'd in their shop. A 3" flex ran me 30 bucks, 3" flange for my n1 was 9 bucks and i paid 60 bucks for 2 45* bends and a 90* bend and about 4 ft of piping. I bought 2 45* bends b/c thats pretty much what my star downpipe was made with, if i'll actually need them is still to be seen. My only piece left is a 3" v-band kit from AGP.
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