after ditching the idea of the apexi N1 cat back. i've finally decided(i hope) on going with the the hks carbon ti muffler :love: with custom piping.

heres the question.
should i go with 2.25 piping or 2.50? i'm not turboed or s/c. so any help will be great.

i have a shop right around the corner from my house to do the work. They're friends of my parents so i should get a pretty sweet deal.

i think 2.5 is the right size for piping, cz im pretty sure thats what the size is lol. I think tho im not 100% sure.

ask for mandrel bends on the piping if you can

2.25, make sure there mandrel bends, or ur not gonna see any more than 1 or 2 hp gain.