i know for a fact that the AUDM dc2 cat is longer and JDM dc2 cat is smaller and if use JDM cat it will fit the mugen parts onto it perfectly widout any cuttin etc. but i think i know what i will put in, i probably go for the Toda 4-1 and the TODA cat and mugen catback etc, even though my car is not gonna be that low im still scared of the extra 7mm lower on the mugen headers, somethin just mite go wrong, anyway, thanks a lot people, btw im andii and i just recently bought a 95 ek Vtir nice to meet u all and thanks again for the help