For any of you who decide to purchase the split second turbo tuner, you will be very happy. However installation is a bit of a bitch, and searching on the internet didn?t help me much, so im going to do a favour to all of you and help you out. Firstly, the guides that are given are for 335 and 135 are not the same as the 535. For some reason it doesn?t show anywhere how to install the device on the 535. After spending lots of time trying to figure out what to do, and almost getting the job done for me and paying about 80 dollars I figured il just try again. Unfortunately the airbox needs to be taken out which isn?t too hard after learning how to do it? (btw if you attempt this, you will notice 3 rubber things that hold the airbox in. 1 inside and 2 on the outside. In order to take out the airbox you need to stretch the sides of the rubber circle thing and pull the box off) once the box is out, the TMAP wires are behind this thick tube, you cant really see it but you could feel it if you have an idea where it is . The job is kind of annoying but it?s worth it. I dunno how normal 535s go but I have the sport button on mine and with the turbo tuner the car really flies.
(the job took me about an hour to do, but if I had to do it again, it would probably take about 20 mins..)

 

Sweet! Thats good to know.

I'm going to beta test the new JB+ and it hooks up the same way.