Just put my Ls VTec in my rex today. have after market header, tried to put it in and it wouldnt fit. i think the header is for a b16, the crossmember was in the way. do I need to buy a two-piece? please help.

 

If your header is a 4-1 then you need to buy an aftermarket crossmember for the header to work. Otherwise you can get a 4-2-1 which can come either 1 or 2 piece and it should work fine. Then again im not positive on this because i have a 91 civic but i still think you should be fine.

 

I just put a LS in my 90 civic and without doing a custom crossmember you will have to do a 2 piece header.I have a DC Sports 2 piece that I would sell if you want to go that route.

 

i think i will just go with the 4-2-1. i am also havng problems wiring my vtec. where is the IAB located. i have a custom wiring setup from ground level imports out of houston. one of the wires for the vtec needs to be connected with the IAB (secondary intake runner). if i could get some close up pics of your set-up that would be the **** because i am strugging with just a few of the wires and vacuum lines. i need some close up pics of intake an vtec side of engine. please help me out

 

gsr head? just get a chipped ecu n use the vtec one wire feature.. http://www.pgmfi.org

 

my harness is obd 0 to obd 1 and is already wired for vtec. i have 4 wires for vtec on for the solenoid one for oil pressure one for knock sensor and the last for the IAB. i have a b16 head. that means i dont haVE an IAB HUH? does that mean i just need the wires ran to the vtec solenoid and the vtec oil pressure sensor. my computer is already wired not to look for the knock sensor. my ecu is chipped. i have a skunk 2 style chipped p28.