Quote Originally Posted by CRXer View Post
not for the P72 B18C. 4400 is the official stat,i can show ya a vid of when i had a vtec light hooked up if u want.

btw,how can u tell its changin at 4500,when my B18C was stock i could hardly feel/hear the vtec Xover,the IAB change was much more noticable at 5750rpm
yup the butterflies opening did something audible to the VTiR's ive driven - and not VTEC