yer second hand pacemakers with cat for $250, just ask around. When people turbo their car they have to put in special exhaust manifolds so they sell their old extractors anyway. ull get it cheap here. as i mentioned up a bit, just post a thread in the wanted section for pacemaker ph4499's. ull get a set for around 200 with out a cat id think from someone here. As long as they have no damage second hand ones are fine.
Well if your dads a great welder then he could probs do your cat for you too. dont quote me but i believe the intake for the cat is already 2.5" whereas the output is 2.25" but u may wanna check that. Some people change the output flange to 2.5" so it flows 2.5 all the way through. That section is very short though and i cant see it mattering at all on a non-turbo mildly modified car used for street purpose.
As for the hi flow cats you can buy them so they are bolt on to your system but the overwhelming consensus is that the stock cat flows very well if its not blocked. From what ive seen they are quite expensive. Id recommend using your stock cat if you can have it modified for free, you can always upgrade later on if you get the extra money but not many people will tell you that you actually need one.
In the end it comes down to how much you wanna spend, you could take it to mr.muffler and ask for paceys, hi flow cat and redback exhaust + fitting he would probs want over a grand. i got a quote for some no-name extractors plus no-name exhaust with my standard cat kept and he wanted $800 just for that

. My setup has cost me 400 in total cos i did it all myself

and learnt alot about them along the way, its quite rewarding.
Sorry for the exceedingly long post

EDIT: Just thought id add this in as im SOO bored and have no work tomoz lol
http://www.bestmufflers.com/Information ... PH4499.htm

