P3 Analog Boost Gauge & Multi-Gauge for Audi A4/S4/RS4 B7 (2006-2008) - Boost/Vacuum, Battery Voltage, 0-5V Sensor Inputs, Auto-Dim

Stealth factory-look pressure and sensor display for Audi A4, S4 and RS4 B7 2006 to 2008

Give your B7 cockpit a clean, OEM-style readout without pods or clutter. This P3 vent-style display delivers precise turbo pressure and manifold vacuum, a live battery health readout and two auxiliary 0 to 5 volt channels for popular aftermarket senders. Ideal for A4 2.0T TFSI owners who want a reliable turbo pressure meter and just as useful on S4 and RS4 builds for vacuum and auxiliary sensor monitoring. It looks stock, responds fast and keeps vital info right in your line of sight.

Heads up: this unit is not plug and play. You will need to run a pressure or vacuum reference line to the engine bay and wire in power and ground. A boost tap is not included. Optional sensors connect to the dedicated 0 to 5 V inputs.

What it reads

• Manifold pressure / vacuum via the dedicated analogue pressure sensor connector. Boost reference hardware not included.
• Aux channel 1 on brown wire, accepts any linear 0 to 5 V signal such as oil pressure, fuel pressure, ethanol content or wideband controller output.
• Aux channel 2 on blue wire, accepts any linear 0 to 5 V signal for flexible expansion.
• Battery voltage through the main power and ground leads for quick charging system checks.

Auto dim input on green wire. Connect to a lighting circuit that’s live with headlamps, then enable in the menu so the display dims for night driving.

Why enthusiasts choose this P3 display

• Discreet OEM aesthetic that blends into the cabin. A tidy alternative to pillar pods and stick-on gauges.
• Real-time turbo pressure and vacuum for remapped A4 2.0T cars and track-day shakedowns.
• Two 0 to 5 V inputs for common tuning sensors: oil pressure, fuel pressure, ethanol content analyser output, or wideband AFR controller output.
• Built-in voltage monitor to keep tabs on the charging system during spirited use.
• Headlight-linked dimming for comfortable night-time visibility.

Compatibility

Designed for the Audi B7 platform, model years 2006, 2007 and 2008. Fits Audi A4 B7 2.0T TFSI as well as S4 and RS4 B7 models. Common search terms include Audi A4 B7 turbo pressure gauge, Audi S4 B7 vacuum display, RS4 B7 vent gauge, B7 8E pressure monitor and factory-look gauge for Audi B7.

Installation notes

• Requires a physical manifold pressure or vacuum reference line to the engine.
• Wire red and black for power and earth to enable the display and voltage reading.
• Use brown and blue for your 0 to 5 V sensor feeds if adding auxiliary senders.
• Boost tap and additional sensors are not included.

Want it fitted professionally with tidy routing and calibration We can help. Book installation with MJ Modifications in Warwickshire. Request a fitting quote at info@mjmodifications.co.uk.

Tried and trusted

We have installed this display in-house on customer cars and our own builds. The feedback is consistently positive for the quick response, stable readings and the neat, factory-style integration. It is a brilliant pod-less solution for performance monitoring on the B7 platform.

Search-friendly terms: Audi A4 B7 turbo pressure display, A4 2.0T TFSI vent display, S4 B7 vacuum reader, RS4 B7 gauge alternative, Audi B7 battery voltage monitor, 0-5V sensor input gauge, oil pressure readout Audi B7, fuel pressure display Audi A4, ethanol content input gauge, wideband AFR 0-5V input, headlight dim input, Audi 2006 2007 2008 B7 gauge.