I bought a used zex kit(wet) and went to install it but the question arose, "Should I have aTPS module, there was nothing in the kit to hook up to the throttle body. I need someone who has installed a zex kit to answer this question, or someone who knows obviously. Should I buy the one off of their website, or should I get a window switch?

 

I haven't bought a complete zex kit but I know they usually come with the TPS switch. I do however have the zex TPS switch and love it. I had a WOT switch before and I prefer the TPS switch hands down. The zex unit is very very easy to set up and I havent had a single problem with it yet.

-William

 

is it built in to the pruple box? Or is it separate?