Got a 1995 WRX and have bought a de-cat down pipe for it. I have been told that this is the only cat on the car as the centre section just has a resonator?? box, it was only UK models with a cat here. My question is when it comes to MOT time would it be easier to slip a cat in the centre section for the day as it seems easier to get to. Would it pass emissions with just a centre cat?? Cheers Tim.

 

Yep, much easier to put on the center on for MoT time and it will fit fine on an import as the exhaust systems are all the same on classic shape scoobs. Most Scooby specialists will have one laying around for such purposes so it may be worth taking it to one for the MoT.

You need to get it nice and hot to pass emissions so take it on a good run before turning up at the MoT station, then get them to test it asap.

 

depends what month yours is mate but pre sept 95 imports i think it is dont need any cats so you wudnt have to bother putting it on for a mot

 

My old my99 Uk turbo only had one cat and that was in the downpipe. Definatley not a cat in the centre section, just a resonater/silencer thing, and that was a standard system when I bought it.

 

I like the idea of just changing the centre section, but not sure now which models had cat in the centre section. Anyone got any ideas? How do other people pass emissions?

 

my99 uk cars should have a centre cat
mine does and my brothers diid

 

removed both from my MY99. Sooo much better, you can see why when you have the std down pipe off the car.

 

Right think I know what I'm doing. Fitting down pipe and getting hold of a centre section cat from a UK spec classic (and taking it to the MOT station hot!!). Sorry to do this but I'm new to all this, Question is the downpipe to the turbo joint face/face or is there a gasket? And does my 1995 WRX have a sensor measuring the exhaust gas - the de-cat down pipe has a tapped thread in the side? Cheers Tim.

 

becareful removing the turbo bolts, they either come straight out or are a real tw@t