Im trying to find the best Ecu for a GD3 L15A, i mean K-Series has Kpro, Bseries has another, Mitsu Evo's has Apexi, im trying to find a racing ecu for my GD3 to buy, if you guys know about any good ecu, money does not matters... Some words i always say is, "Buy Good so you dont have to buy twice" trying to buy best parts for my project.

 

Simple. Get a flashpro. A lot of users on here are starting to get them with great results. Check out the other threads so you can get an idea

 

As long as your GD3 is the same spec as the USA or Canada engines then the Hondata Flash Pro in 100% the tuner you want. Check it out:
FlashPro Fit

 

Yep FlashPro will be the easiest solution and it's a great product and will probably do everything you want it to. Hondata should list the supported ECU's so check the list against your ECU part number.