its JDM b18c from an SiR, hence it is equivalent to the AUDM B18C2 except for higher compression pistons.
In stock form there was barely any crossover to be heard and now it is very noticeable.
if you're gonna get a skunk2 IM, it will eliminate the dual stage butterfly and i'm pretty sure you will need tune the car to that.
you don't have the smaller port for low speed driving and thus intake air velocity is slower and hence less power on low revs (i could be wrong?)
just do your i/h/e and you will have a very nice crossover.
Bookmarks