A4 S4 RS4 (B8) For Discount
$100.83P3 Boost gauge Need plug & play? Try the P3 OBD2 Multi-gauge  instead Boost and vacuum with peak recall Battery voltage readout and quick-check even when the vehicle is shut off Manual dimmer with optional auto-dim feature Includes digital display, power supply unit (with integrated 80psi analog boost sensor), vacuum tubing, wiring harness and related…