a guy bought a 200 sx s13 ecu box and a stage 2 chip into work today and asked me to solder it in i am doin it but have read the instructions and amongst other things it says ALWAYS use at least 97 ron fuel ir needs an intercooler an uprated turbo and a 15 psi boost controller and the ignition timing needs to be altered or he will get detonation i have my doubts weather the guy has done all of the above if he hasnt i think he WILL kill his motor