P3 Digital Boost Gauge for BMW Z4 E85 (2002-2008) - OEM Vent-Mounted, Hard-Wired Analogue 80 PSI Sensor, Vacuum & Battery Voltage, Peak Recall

P3 Vent-Integrated Manifold Pressure Display for BMW Z4 E85 2002-2008

Keep your Z4’s cabin looking factory while tracking real performance data. This P3 in-vent digital display tucks neatly into the stock air vent, delivering live manifold pressure, vacuum readings, peak hold and a handy volts monitor without cluttering the interior. It uses a dedicated external 80 psi pressure sender and a hardwire install for fast, consistent response that does not rely on the diagnostic port.

Key benefits

• Live intake pressure and vacuum with peak hold for easy performance checks
• Voltage monitor to keep an eye on your electrical health
• Brightness control with optional auto-dim for day and night clarity
• Choose permanent live or ignition-switched power during install
• Stealth, stock-style fit in the Z4 E85 air vent for a clean cockpit
• Direct sensor line with analogue sender for crisp, lag-free readings
• Discreet digital readout that suits the BMW dash design

What you get

• Digital in-vent display module
• Control box with integrated 80 psi pressure transducer
• Vacuum/boost hose
• Wiring harness and mounting hardware
• Note: a boost tap is not included

Fitment and installation

Designed specifically for BMW Z4 E85 models from 2002 to 2008. Ideal for turbocharged or supercharged builds as well as anyone who wants a neat, OEM-style solution. The unit is hardwired to power and ground, and the supplied hose runs to your intake or charge pipe for a true pressure signal. It does not read via the vehicle’s diagnostic port.

Prefer professional fitting Our team at MJ Modifications in Warwickshire can install this for you and can also supply a pre-installed OEM vent option for an even easier, factory-look finish. Request a quote: info@mjmodifications.co.uk

Why buy from us

We run P3 instrumentation on our own projects and customer cars because it looks factory, responds instantly and just works. Clients love the discreet styling and the dependable, real-world data. If you want a tidy Z4 E85 interior with serious functionality, this is the go-to choice.

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