HAHA all my friends with their sti's and wrx's laugh at how low my engine's idle is! but the noise you hear is your injectors they use 65 volts to open the injectors and that overcomes the compression in the cylinder. but when i first got my car i felt the same way you did. ENJOY IT!
AWE single tip exhaust | Carbonoio CAI | EuroCode Downpipe | forge BOV | AWE air vent boost gauge | ECS smoked Side blinkers | Deval RS4 Rear bumper | powder coat stock rims | HID fogs & Xenon Projectors