Was wondering if anyone had any input on which tune is best. I have been hearing great things about Ecutek, but someone I know who has a g37 got an UPRev tune and he loves it. Any personal experiences or reasons as to go with one over the other. I use the car as my DD but want some more power and want to hopefully get some less lag during acceleration. I'm riding R2C intakes and Ark Exhaust system.

 

read three threads above yours :/