hi, aycy, actually power fc is more suitable for altezza and the price will cheaper than the hks vpro. The power fc is easy to install and no need to cut your car's wiring when do the installation, just take out the original ecu and plug in the power fc. But if you buy second hand power fc, please make sure the power fc either use for manual gearbox or automatic gearbox, because it will be different. You can try to check with Trial Tuning Spirit, because they do the e manage, power fc, hks vpro tuning and other services also.