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Exhaust down pipe.

Posted: Tue Jan 28, 2014 12:22 pm
by GreenyUK
Hey up.
I've just has my car mot'd which it pasted :) but with a kind advisory of down pipe needs looking at lol.

So basically my car is uk model with the jdm engine, at the moment I believe the exhaust setup is ukdm, the cat measures 350mm which I believe is uk?

I can get hold of a jdm decat pipe which measures aprox 270mm from looking at a picture.

So what I need to know since I know need a down pipe is what to get if I wanted to fit the de at also.

I've read a thread on here about the different lengths etc but still I'm none the wiser as so many people seem to have different opinions

I also have at home a cat back mongoose system which came off a jdm car.

So help would be great :)


Ps the actual manifold is a Megan racing item however the down pipe section just looked standard.

Posted: Tue Jan 28, 2014 12:32 pm
by GreenyUK
Will I just need a jdm down pipe and cat ?

Posted: Tue Jan 28, 2014 12:48 pm
by Merlin
Hopefully someone with more knowledge on 4th gen exhaust will comment. On 97-98 5th gens the difference in exhaust between UK & JDM is in the length of the CAT and midsection. If you are not changing the midsection don't change the decat. I hope that it is the same for 4th gens.

Posted: Tue Jan 28, 2014 1:31 pm
by GreenyUK
Right ok see, I've heard it's the down pipe and cat that's the difference with sizes lol :?

Posted: Tue Jan 28, 2014 1:34 pm
by Merlin
It might well be on a 4th. I am not up to speed on 4th gen exhausts.

Re: Odp: Exhaust down pipe.

Posted: Tue Jan 28, 2014 2:28 pm
by cebul
I have an 5th gen Jdm downpipe in my garage so can measure if it help.

Posted: Tue Jan 28, 2014 2:38 pm
by BMCC
Why not just get a new flexi section welded in and a decat while they are at it?

Posted: Tue Jan 28, 2014 2:58 pm
by GreenyUK
Well I can get hold of jdm down pipe and jdm cat now, as I already a cat back system at home that came off a jdm car, I'm hoping that it should all just fit

Posted: Tue Jan 28, 2014 3:55 pm
by Merlin
IMO if you already have the JDM cat-back in the shed then it makes sense to get the matching JDM downpipe and decat. You'll side step any potential fitment issues when mixing up exhausts.

I have a JDM decat in the shed if you are interested?

Posted: Tue Jan 28, 2014 4:05 pm
by GreenyUK
Yeah that's true. Feel abit stupid now really :lol: as if I'm swapping it all for jdm then these is no problem ha.
Wonder why I started this :facepalm:

Well thank you chaps for humouring me :lol:

Merlin thank you, have sorted one out with a local luder. Thank you very much though :D