De-Cat Question ¬_¬

[iN7eL]

Ok Got the deposit down on my vtr, getting her at the weekend :D

Probably going to go for a saxsport 2'' with decat, just a thought though, obviously for MOT and stuff you need a cat, on kamracing I saw a janspeed 4-2-1 mani with sports cat, for MOT, Can i just literally add the Sports Cat to the Decat pipe or does the whole system need to be replaced?

- Sorry for the extremely stupid question but with cars, Mechanically-wise I'm useless!

[xxo0pko0xx]

it depends if the decat and sports cat are welded to the pipe then a whole centre pipe will need to be done but of you can remove the cat/decat as a single unit you can just swap around

[iN7eL]

http://www.kamracing.co.uk/citroen/citroen-saxo/saxo-exhaust/exhaust-manifold/janspeed-4-2-1-exhaust-manifold-sports-cat-saxo-vtr-00-03.html

thats the mani and cat obvs the cat is not welded there, below is the exhaust system, does anyone know if the cat would be a straight swap?

http://saxsport.co.uk/

[devilsadvocate]

The downpipe of the sports cat will connect to the Saxsport, no need to mess about.

Personally I would just get an aftermarket manifold and stick the standard cat back on come MOT time. Would be £200-£300 cheaper and not exactly hard.

[Swify]

Do you think a sports cat is going to make as bigger difference and no cat?? Personally i think id be decatting and having a nice chat with the mot station...

[Swify]

http://www.kamracing.co.uk/citroen/citroen-saxo/saxo-exhaust/exhaust-manifold/janspeed-4-2-1-exhaust-manifold-sports-cat-saxo-vtr-00-03.html

thats the mani and cat obvs the cat is not welded there, below is the exhaust system, does anyone know if the cat would be a straight swap?

http://saxsport.co.uk/

Is it me or am i looking at this really wrong.... Thats a 4-1 not a 4-2-1 ???

[iN7eL]

So when ordering, Should i be ordering the Straight through system with de-cat and purchase the sports cat to go onto it? Or should i be purchasing the cat back system and put the sports cat on, surely thats a lot quieter? I'm So confused haha

[Swify]

Get the decat and stright through and when the mot comes, just put your orignal cat back on for an hour.......

[iN7eL]

Yeah, Im just really useless at that stuff which would mean I pay each time, is it hassle to get on and off?

[devilsadvocate]

These are general rules, there are a few exceptipns...

If you have a Mk1 VTR then the Cat is under the car so can be swapped out easily.

If you have a Mk2 VTR then the cat forms part of the manifold so you would need to remove the manifold and refit the old one (and the cat as part of it)

[iN7eL]

LONG - Basically, best option like mentioned would be either get the straight through de-cat and keep the old cat-back to swap over with the old mani ORRRRRRRRRR

Purchase the Catback or Straight through de-cat? and purchase the 4-2-1 mani and sports cat, my other question, can the Sports cat with new mani be added to the de-cat to make it road legal or would I have to purchase the cat-back version and then obv add the mani and sports cat