Cat Length

[RedRocket1]

Ive only got a couple days left at my work so im gettin all i can get out of it, what im needing is the full length of the cat on the exhaust. My plan is to cut off the flanges and weld a pipe in between. Or if that ####s up just make new ones. I need the length because om making it 2" shorter. any help appreciated.
Cheers(Y)

 

[frank]

you need the flanges really and the bracket that bolts to them (to stop the bend near the tank from hanging down and twisting the joint at the front)

 

[RedRocket1]

So if i take the cat off, cut both flanges off and the bracket and simply weld the flanges and bracket back onto and stainless pipe....that be ok?
Its just my full janspeed sticks out quite a bit, tried knocking it back, everythings in the right place but if i do that it should look ok i hope.

 

[Alexx117]

If youre on about the 2nd cat do you mean something like this?

http://www.skylinepart.com/ekmps/sh...catnissan_r34_gtt_decat_pipe[E]533x400[E].jpg

If you weld it say two inches shorter be wary of where the bend from the back box goes, you dont want it hitting the tank.

 

[RedRocket1]

exactly like that!....turns out im getting kept so ive got plenty time now...and there should be enough space. The angles of the flanges might be a bit of a b**tard.

 

[frank]

the cat is slightly over 12" btw RR :grinning:

 

[RedRocket1]

Perfect, cheers bud.
Gotta get down the scrappies for a spare.

 

[frank]

Perfect, cheers bud.
Gotta get down the scrappies for a spare.

i just bolted the flanges together and extended the midpipe previously on mine (tho a coilpack midpipe does the same thing basicly)

 

[Stani1029]

thats what i done aswell frank

 

[RedRocket1]

i just bolted the flanges together and extended the midpipe previously on mine (tho a coilpack midpipe does the same thing basicly)

I'm not too sure what you mean mate.

 

[frank]

I'm not too sure what you mean mate.

which bit ?

 

[RedRocket1]

All of it...just finding it hard picturing what you mean.

 

[frank]

All of it...just finding it hard picturing what you mean.

i cut my midpipe about 6" from the flange, then bolted the 2 flanges together, then slid a (24" ?)pipe over the 6" tail, and slid the midpipe into it, then welded :grinning:
but a coilpack midpipe is already that (12") longer length, and can be had for £25 ish

 

[RedRocket1]

Ah i see what you mean now. Well im gonna see what i can get at the scrappies at the weekend then try anything at work next week. I take it with a decat pipe, the exhaust gets louder?

 

[frank]

yes, slightly louder, dont do what we did on rich,s (rlees) car, and gut the 2nd cat, because the outer casing is pi## thin (and it sounded like a 2 stroke lol :laugh