Air and Fuel› Superchargers, Turbochargers and Components

Forge Motorsport

Atmospheric Dump Valve Kit

$438.32

SKU: FMDV39-BLUE

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$100 Minimum Order
Non-Returnable Item
INSTALL DIFFICULTY
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Easy — 1–2 hours

Overview

The Forge Motorsport FMDV39-BLUE is an atmospheric dump valve kit designed for VAG 1.5 TSI engines from 2022 onwards. This kit replaces the stock plastic boost pipe with a silicone hose and includes all necessary hardware for installation. It helps prevent turbo surge, prolongs turbocharger life, and increases throttle response by reducing turbo lag. The twin-piston design provides a distinct sound when lifting off the throttle.
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The Forge Motorsport dump valve kit (FMDV39-BLUE) is engineered to replace the OEM boost pipe on VAG 1.5 TSI engines manufactured from 2022 onwards. It features a tuneable CNC-machined twin-piston Forge Motorsport valve with anodized billet couplers and components. The kit includes a silicone hose, available in blue, red, or black, which replaces the susceptible OEM plastic pipe from the turbo to the manifold. This design prevents turbo surge, extends the life of the engine's turbocharger, and enhances throttle response by minimizing turbo lag. The valve's twin-piston design dumps charge-air to the atmosphere, creating a distinctive sound and reducing strain on the turbocharger's impeller. This is particularly beneficial for remapped or modified vehicles, where increased stress can lead to premature turbo failure. Included in the box are the atmospheric dump valve, a boost tap/take-off, throttle body and turbo couplers, the silicone hose, hose clamps, all fixings, a roll of vacuum tubing, and Norma adaptors. Forge Motorsport also offers an optional 1.5 TSI EVO Performance Intake Induction Kit and a Boost Gauge Fitting Kit that can complement this dump valve. It is crucial to verify vehicle compatibility by examining the engine configuration, as later 1.5 TSI engines may have slight variations. The product page provides visual aids and encourages contacting Forge Motorsport with any questions.

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.

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Specifications

BrandForge Motorsport
Part NumberFMDV39-BLUE
CategoryAir and Fuel
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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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