As title just looked thru a few threads on this and was wondering if anyone can give me some advice... basically my car has a bov and a cat back exhaust oh and lowered on 18s now I was wondering what is the next step after looking at a few threads is it a good idea to relocate the battery and geta cold air feed and a k and n filter plus a flash tune?? also read you can bash the inners out on the cat??? just want more power really but still want it reliable and dont want it to cost the world I use the car at weekends and that's it it has done 124k with fsh and was std when I got it and still is basically :) anyway any help and advice would be much appreciated guys and girls :)