Originally Posted by Mister Two

Decapping injectors is removing the cap on the end of the injector that controls the fuel flow. Without the cap flow goes from the stock 440cc IIRC to 816cc. Probably cost no more than $200 for a workshop to remove the caps. Reliability is fine. Same as OEM. Lots of people on here doing it with no problems.

Compared to STI injectors. They just flow more. STI pink injectors flow 565cc IIRC. And I doubt any reputable tuner will have a problem with 816cc injectors. ASG just did Feral's 06 WRX with decaps and it drives smooth.