P3 Vent-Mounted Boost Gauge for BMW 3 Series E9X 2004-2013 (E90 E91 E92 E93, incl M3) - Analog Dash Vent Display, Boost/Vacuum & Manifold Pressure Meter, 0-5V Aux Sensor Inputs - OEM-Style Fit for 335i Turbo

OEM-look vent-integrated analogue display for BMW 3 Series E9x 2004 to 2013

Give your cockpit a factory-fresh performance upgrade with the P3 analogue vent display. Built to sit neatly in the air vent on the E9x chassis, it delivers live manifold pressure, vacuum, battery volts and two auxiliary 0 to 5 V sensor channels in a clean, discreet package that blends with the interior of the E90, E91, E92 and E93 including M3.

We run this gauge in our own cars and our customers love the tidy OEM-style appearance, fast response and consistent accuracy. It is the smartest way to add a pressure gauge and extra sensor monitoring to your 3 Series or M3 without bulky pods or clutter.

What it reads

• Boost and vacuum via the included analogue pressure sender with dedicated yellow, purple and black plug. Tracks charge pressure and vac for reliable turbo monitoring. Boost tap not included.
• Auxiliary input 1, brown wire, accepts any linear 0 to 5 V signal. Ideal for oil pressure, fuel pressure, coolant temperature, intake air temperature or a wideband controller output.
• Auxiliary input 2, blue wire, a second 0 to 5 V channel for additional sensors or data logging.
• Battery voltage via red and black wires, helpful for charging system health checks.
• Optional auto dim, green wire, connect to a headlamp live and enable in the menu so the display dims at night.

Perfect for 335i builds and other forced induction setups, track cars and daily drivers who want a stealth gauge solution with immediate, real-time data.

Installation notes

Not plug and play. A vacuum or boost reference line to the engine is required and the unit must be hard-wired for power, ground and any optional analogue inputs. A boost tap is not included.

What you get in the kit

• Integrated vent display
• Analog Box control unit
• Main harness
• Hard-wire harness
• Analogue boost sensor, boost tap not included
• Approximately 5 feet of 5/32 inch O.D. boost tubing with 5/32 inch I.D. hose at each end
• 3 zip ties
• 2 scotchlok wire taps

Compatibility

BMW 3 Series E9x 2004 to 2013 including E90 saloon, E91 touring, E92 coupé, E93 convertible and E9x M3.

Why choose MJ Modifications

• Independent BMW performance specialists in Warwickshire
• Tested by us in-house and proven with happy customer feedback
• Seamless factory-style integration for a premium, discreet finish

Professional fitting available

Want it installed properly first time. Book expert fitting with MJ Modifications in Warwickshire. Request a quote at info@mjmodifications.co.uk.

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