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Air and Fuel› Superchargers, Turbochargers and Components

CTS

Manual Boost Controller

Name: Manual Boost Controller
Brand: CTS
SKU: CTSMBC

$53.00 $48.00 Save $5.00

SKU: CTSMBC

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Overview

The CTS Turbo manual boost controller (MBC) is designed for big-turbo 1.8T applications. It is used to dial in the boost on a custom build, typically installed between the turbocharger outlet and the wastegate.

Boost in (from turbo) is opposite the screw, while boost out (to wastegate) is at a 90-degree angle to the screw. Tightening the screw increases boost, and loosening it decreases boost. A mounting hole is provided for easy installation.

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It is particularly noted for its common use in big-turbo 1.8T engine applications, offering a way to dial in precise boost levels for custom setups. This manual boost controller typically installs between the turbocharger outlet and the wastegate. The "boost in" connection is located opposite the adjustment screw, while the "boost out" port connects to the wastegate at a 90-degree angle to the screw. By tightening the screw, users can increase boost pressure, and by loosening it, they can decrease it. This mechanical adjustment allows for tailored performance. The controller features a provided mounting hole, simplifying the installation process into the engine bay. It serves as a direct replacement for the factory N75 valve in some applications, potentially offering more accurate boost control and reduced fluctuation in psi.

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	CTS
Part Number	CTSMBC
Category	Air and Fuel

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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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