Mercedes-Benz C63 Blow Off Valve (1) - Left Hand Side - Turbosmart - Kompact EM Plumb Back VR33 - `15-`18. This is a Turbosmart Kompact EM plumb-back blow off valve designed for the left-hand side VR33 turbo on 2015–2018 C63 models. It replaces the stock recirculating valve with a direct-fit performance unit.

Built as a one-off, left-side service part, this Kompact EM plumb-back BOV is intended for owners who want a reliable, OEM-compatible recirculating valve that maintains drivability and turbo behavior. The plumb-back design vents back into the intake tract, preserving factory emissions and idle characteristics while helping to manage compressor surge when the throttle is closed. It is supplied as a single BOV for the left-hand side VR33 location and matches the intended fitment for 2015–2018 Mercedes‑Benz C63 applications.

Features

• Fitment: Mercedes‑Benz C63 (2015–2018), left-hand side (LHS) VR33 turbo
• Type: Turbosmart Kompact EM plumb-back (recirculating) blow off valve
• Quantity: Single BOV for LHS application
• Purpose: Maintains OEM recirculation, reduces compressor surge, supports stock drivability
• Direct-fit design intended for straightforward replacement of the factory unit

If you have questions about fitment, installation, or compatibility with other modifications, please call us directly. We offer installation and customization services at both our Austin, Texas and Los Angeles, California area locations — call 512-982-9393 (TX) or 562-981-6800 (CA) to speak with a tech. If you are considering purchasing multiple items, contact us for possible shipping discounts. We install on premises at both locations.

CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov