BMW M57 TopMount Turbo Adapter with EGT Sensor

BMW M57 TopMount Turbo Adapter (Optional EGT Port)

The BMW M57 TopMount Turbo Adapter is designed for a clean, compact top-mount turbo setup on M57 engines. It features an optional EGT (Exhaust Gas Temperature) sensor port for those who want precise exhaust temperature monitoring during tuning and performance driving.

Designed For This Configuration

• Exhaust manifold: 3-bolt OEM manifold (M57D1 or M57N D2) installed inverted (upwards).
• Turbocharger: M57N D3 V-band turbo, modified for upside-down mounting, with the oil drain oriented straight down.
• EGT Port: Available as an optional feature for those who want to install an exhaust gas temperature sensor.

Why Choose a Top-Mount Setup

• Frees up space in the engine bay for custom project requirements such as larger intakes, extra cooling, or auxiliary systems.
• Much easier and faster servicing – especially critical during expeditions or remote travel where quick repairs can make the difference.
• Shorter piping when paired with a TopMount intercooler, resulting in faster throttle response and reduced turbo lag.

Key Features

• Precision-machined adapter for M57 top-mount geometry
• Optional 1/8" NPT EGT port for performance monitoring
• V-band turbo interface for secure, leak-free sealing
• Durable construction for high-temperature, high-boost use

What’s Included

• TopMount turbo adapter (EGT port optional)

Note: This listing is for the adapter only. A complete top-mount conversion requires additional components listed below.

Additional Parts Required (Sold Separately)

• Extra support/mount bracket for turbo stability
• Oil feed line (AN setup recommended)
• Oil return (gravity) line with a straight-down path to the sump
• V-band clamp(s) and sealing hardware
• Custom downpipe for top-mount position

Compatibility & Installation Notes

• Fits BMW M57 platforms using a 3-bolt OEM manifold (M57D1/M57N D2) inverted for top-mount use.
• Requires an M57N D3 V-band turbo modified for upside-down orientation so the oil drain points vertically down.
• Check clearances (brake lines, wiring, hood, firewall) before installation.

If you need the full kit — including extra mount bracket, oil lines, clamps, and downpipe — see our related products.