Decat question

macky_6 · Post by **macky_6** » Fri Mar 02, 2012 2:27 pm

Hey all,

I have a 2.25 inch cat-back exhaust. I am looking to get a Decat pipe but will I need to get a custom one or will the off the shelf ones do the job?

Regards

bennyboy · Post by **bennyboy** » Fri Mar 02, 2012 2:29 pm

The biggest issue is Jap or UK, since they are different lengths IIRC.

Edit: Sorry, noticed yours is a 5th gen, so not sure if that applies

BMCC · Post by **BMCC** » Fri Mar 02, 2012 2:32 pm

Yours is a jap import and the convertor is a few inches longer so unless you can find a JDM Decat you might have to get one made up. RMS in Ayr should be able to sort you out.

macky_6 · Post by **macky_6** » Fri Mar 02, 2012 2:42 pm

It's a JDM one I was looking at.

I am more concerned with the bore size. Does it need to match the 2.25 inch cat-back exhaust? I am assuming the JDM one i am looking at will be 2inch bore.

Will this matter?

Is there more performance to be had by getting a custom 2.25 Decat made?

BMCC · Post by **BMCC** » Fri Mar 02, 2012 2:48 pm

Any step down in size will reduce flow so I would try and get one that is 2.25 inch. Not sure if there is any more performance to be had by a custom one but at least you know it fits when you get it which might not be the case if you buy one in.........

Post by **lewd lude lover** » Fri Mar 02, 2012 3:07 pm

get it the same as the cat back rather than the manifold.

Post by **vanzep** » Fri Mar 02, 2012 6:24 pm

If you cant find what your looking for off the shelf then you could try Solid Fabrications think theyre based in London. They made a lot of JDM straight thru decats and could probably do a custom one for you.

macky_6 · Post by **macky_6** » Fri Mar 02, 2012 8:48 pm

OK, thanks people

I need to get a custom downpipe made anyway so will just add this to the list

This list is getting out of hand

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