Im just wondering what size cat i should go with.
Ive currently got an Apexi N1 cat-back, Its the GST version exhaust, I think its bigger than the NT one right???
What size cat should i get to match up with this? 2.5? 3?
Which one will mount up to the N1?
Will I notice a gain if i get a hi-flo cat?
Thanks for the info!
~Luke