1. GXR1147

    Upgrading RCC stage 1, now has issues.

    installed a RCC stage 1 kit about 3 years ago, had frank at powerhouse tune it and all was great. Zero complaints or issues. Then I wanted more boost. Picked up a first version RCC ultra plenum (used, off the internet() and the other parts needed, including 60# injectors (new), from frank at...