WalkingKenshin

I'm on summis site, so far i bought

2 1/2 in. diameter, 4 ft. long, steel, aluminized finish, exhaust tubing
two of these, 8ft in total just incase if i mess up

Universal, up to 1,500 degrees F, high temperature, black, silicone coating

Universal, 2500 series, OBD II compatible, 2 1/2 in. diameter slip fit inlet and outlet, stainless steel, catalytic converter (going to remove inside for more flow after inspection)

18mm x 1.5 thread, weld-in oxygen sensor fitting (for the seconday)

So.. what do i need to join the piping, can i tig weld it at a shop, should be cheap. I'm just sick of $400 exhaust. I would rather have something ok, but have the fun of building/designing myself. This should be a awesome diy/project

^jefs0ng

Don't you need more than just 8 feet of piping for an exhaust? I don't think even a straight pipe would cut it..

WalkingKenshin

its just for the mid pipe, looks to be about 5 1/2 - 6 ft long

92CIVICCX

i would like to know about this also... although i have a 4 door dx... how are you going to make the bends? or are just running straight back?

bad93ex

What about Mandrel bends?

H22A EG6

i would not hollow the cat out b/c it will not be a smooth flow
spot weld a pipe throught the middle for a smoothe flow
are you gonna put a muffler on there?

jaxle

how are you going to straight pipe it back? do you know how to weld? having someone weld it for you cant be cheap.

WalkingKenshin

it's been done before, just run the pipe from the header, under the the gas tank and in beetween the two lca supports. A couple members on here have had it done, and my friend said hes gonna weld it. It should be a lot better now that i think about it flow wise, i'm not gonna run a cat, etc, just pipe and a spoon n1.

Joys of my area.

Vero

its like 10-11 feet id say.

MrIllegalX

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by [label &raquo;</TD></TR><TR><TD CLASS="quote">kenshin]I'm on summis site, so far i bought

2 1/2 in. diameter, 4 ft. long, steel, aluminized finish, exhaust tubing
two of these, 8ft in total just incase if i mess up

</TD></TR></TABLE>

4 ft. per pipe? 2 1/2 diameter? I'd go no more than 2 1/4.

jaxle

hows the ground clearance when the pipe goes under the gas tank?

94civicsally

Not trying to steal your thread, but I need some help too. however you guys sound more complicated then Im looking for. I bought a bolt on cat back and headers. I have a post out trying to get some more infor about it. Do you guys know If i should keep my oem cat? Do I need to worry about the secondary o2 sensor or anything? I have been digging through h-t looking for answers. This is my first time switching out an exhaust myself. I appreciate any help at all alot!!!
Thanks!

sledgehammer

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by jaxle &raquo;</TD></TR><TR><TD CLASS="quote">hows the ground clearance when the pipe goes under the gas tank?</TD></TR></TABLE>

Minimal!

I'm running 2.5" piping under the gas tank, and once I'm dropped, it should be close to the ground, def. gotta be careful.

Mike