gameboys are for playing video games. tuning is for tuneable ecu's. piggybacks are to fool a stock ecu. gameboys for tuning is for coolness effect.

if you really want a tuneable system that will be reliable and make you power go with a socketed/chipped ecu w/ crome.

i've done plenty of writeups as to why piggybacks are not the best tuning device...if you can't find it let me know and i'll do it again.

feel free to pm me w/ any info or if you want an affordable and tuneable ecu system for your eg.