me and 2 buddies back in 04 built a ls/vtec, b18b with gsr head, skunk2 im...with all jdm type r internals. pulled 173whp with crome tunning with jdm type r base map....ran a 14.1 at New England Speedway in New Hampshire....but ran into too much problems so he went back too his gsr......good motor...but too much probs, unless u really got money and build it correct and blue printed.