ok..need to know if anyone done some measurements on thoose..
i know that there is a difference in the USDM model from 97-98 base to 99+ base ..supposed to be slightly bigger 2-1 and collector and better bent..
what is the difference with type S
need VERIFIED info please..no assuming it is bigger..i already know it is bigger and better

hehe
so need to know where are the difference..and what fits on what..
need to know what can be done without changing to aftermarket downpipe wich rules prohibit
thank you