Hi all. Sorry am new to forums so unsure if this has been asked before. I have a '15 WR450, removed exhaust restrictor, throttle stop, and air box snorkel. I have been reading up that the stock ECU can be modified with the Yamaha EFI power tuner. I have also read that adding in a GYTR ECU makes the bike more powerful all round. My understanding is that GYTR tuner only works with GYTR ECU and Yamaha tuner works with stock ECU. My question is, is there any point purchasing a GYTR ECU if the stock ECU can be mapped (as far as my understanding goes) to match competition ECU anyway?