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Air and Fuel› Superchargers, Turbochargers and Components

BlackBoost

Blow-Off Valve Adapter

Name: Blow-Off Valve Adapter
Brand: BlackBoost
SKU: BBFTA002

$299.00

SKU: BBFTA002

Free Shipping over $200

$100 Minimum Order

Non-Returnable Item

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Easy — 1–2 hours

Overview

The BlackBoost USA Blow Off Valve is an adapter that converts the factory diverter valve into a blow-off valve. It achieves this by venting compressed turbo air to the atmosphere.

Show original supplier description

The BlackBoost USA Blow Off Valve adapter converts your vehicle's factory diverter valve into a blow-off valve, venting compressed turbo air to the atmosphere for an iconic sound. Constructed from durable 6 Series Aluminum, this adapter is designed for a Plug and Play Installation, requiring no tuning and not triggering a Check Engine Light. The actuation of the diverter valve is dependent on manufacturer specifications. This blow-off valve adapter is compatible with a wide range of Mercedes-Benz and Aston Martin models equipped with M177 LS2, M178, or M276 engines. Specific fitments include various AMG E63(S), S63, GT, GLE63(S), G63, SL55, SL63, and Aston Martin DBX models, as well as C43, C400, C450, E43, E400, E450, GLC43, SL400, and GLS63(S) variants across a range of model years. Please refer to the comprehensive compatibility list for exact year, engine, and submodel fitment details.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

Brand	BlackBoost
Part Number	BBFTA002
Category	Air and Fuel

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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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