really its just obd port and one wire to tap for ignition source, if you just hook-up the obd port, even if the engine is off and the key is not inserted, the BLITZ is still on and will porbably drain your battery, the kit comes with a suction cup mounting device, which i don't use cuz;
- we have horrible roads and the philippine version comes with bilstein shocks as standard, so if you mount it on the windscreen , the blitz unit tend to vibrate/wobble and can't actually see read it while driving.
- the whole mount is just plain fugly, you can convert it to a surface mount tho, but its just way too bulky.
what i ordered is the blitz mount similar to an apex VAFC mount, actually i would have preffered the apex i mount cuz its bigger, the blitz mount is so tiny , but it does the job, i have mounted it on the steering column, and dash and it looks clean.
and yeah, the boost variance i ordered a defi boost gauge and when i install it, i will definetely see what the variance is, it could be just the dynojet from our local tuner