Best sports cat and induction mods?

Hey people!
Im after a sports cat to go with my cat back. I know a milltek wont fit because millteks dont go with any other system. What sports cat could i get that would fit any system?

Also...whats the best way to improve the air flow?

Reece..
 
Sports cat is an absolute waste of money, standard cat is very free flowing.

Potentially decat with a remap works well.

Other than that exhaust an panel filter im afraid, modified throttle body is popular.
 
Sports cat is an absolute waste of money, standard cat is very free flowing.

Potentially decat with a remap works well.

Other than that exhaust an panel filter im afraid, modified throttle body is popular.

Okay ill keep the standard cat then! Ive heard decats dont run well on these cars though :\

And where can i get a modified throttle body from? Or do i have to send it off to get ported and polished??