box is plug and play , has jumpers inside it for analog inputs or egr so dont connect your egr unless you check the jumpers
casper adapter has a plug for a map sensor that can be hooked up directly to the plug or extend the signal wire in middle to your map signal (you need a 3 bar map sensor)
make sure the casper box ground wires have a solid clean ground connection
disconnect and remove your old MAF and translator
install o2 bung in downpipe about a foot from turbo .. install wideband sensor ..run o2 extension harness from casper box to sensor
install iat sensor into up pipe or doghouse or , intake ..i just drill and tap plenum for sensor , there is an iat extension harness avalable from caspers or cut and extend wires or tf you seperate the wires from the loom they will reach if sensor is put on driverside of plenum
now you can power it up
download and install the 2.5 wp xfi program from fast and the drivers for the usb cable (prolific) connect with laptop (you need to check device manager advanced settings and see the com port that the laptop set your usb to and change it to com 3 and you need to check the com setting is at com 3 in the xfi box under communication>setup> choose the com 3 port ..then F2 or communication>connect and you should be online
once connected you and you can install the 2.05 update ,, then you need to go through the program you have or load a compatible 2.05 tune for your combo /injector and make sure all tables, parameters and boxes are properly programmed and selected before fire up...calibrate the tps , make sure map sensor and 02 sensor are correctly selected ,verify map signal at 100kpa(+/- a few), verify and set tps position to -0- and that it can go full or close thereabouts but not over 100, check program for injectors , base timing and ignition type , , theres a prelim list for 2.05 that needs to be checked over and corrected since those tables will have diferent values than and wont work on those defaults ..once it starts (or not )you can tweak the iac and then the ve to get the a/f in check ..then the tuning begins