i know for turbo no exhaust is best, but whats the best compromise ?
according to dsm.org, they don't recommend anything over 2.5" unless 20G or bigger, right ?
but i see people with 2.7 and 3" out there with even 14b, so what shall i go with ?
star stage II, boost will be kept low (like 4-5 psi for regular driving)

thanks

javi d
vroom n' boom