Did some searches, couldn't find anything detailed enuf. I have a 93 Prelude 4WS Si and at the moment getting my ducks in a row. I am in the process of buying parts and throwing them together the right way! I have a P13 on it's way for a USDM 94 VTEC Manual tranny. I am going to keep the original wiring harness and wire the VTEC in myself. I was able to see the article on wiring VTEC in civic's and Integra's for B-series capabilities, but I was not sure about the means of the prelude. All I thought there was to this was wiring the A4 and D6 pins to the VTEC solenoid. I need to know if there are any hazards to look for and if there are any other wiring problems I will be encountering. I am bolting the Si intake manifold up to the VTEC, which is the same and will work. Other than the bottom-end, head, injectors, and header, I am using all of the original Si components such as, Intake manifold, tranny, mounts, and linkages. I believe I shuldn't have any problems with this swap, but just in case, I appreciate feedback from someone that has done a similar swap. Thank you for reading!