CTS Turbo

Factory Blow Off Valve Adapter

$169.99

SKU: CTS-HW-0478

In Stock
In Stock
Ships by Aug 31
Free Shipping over $200
$100 Minimum Order
30 Days Return

Description

The CTS Turbo Vent to Atmosphere (VTA) Adapter is engineered to enhance the auditory experience of your Mercedes-Benz M177 engine by producing a desirable blow-off valve sound. This adapter offers a "bolt-on" solution, allowing enthusiasts to achieve the characteristic sound without it being overly loud or intrusive. A key benefit is its compatibility with the factory bypass valve, which means no Check Engine Light will be triggered, and no additional tuning is required for installation and operation. This VTA adapter is specifically designed for the following Mercedes-Benz models equipped with the M177 engine: 2015-2021 C63/C63S (W205 chassis) and 2017-2021 GLC63/GLC63S (C253/X253 chassis). Some sources indicate that this product is sold for competition use and may not be legal for use in highway or street vehicles.

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

BrandCTS Turbo
Part NumberCTS-HW-0478
CategoryAir 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.

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