Forge Motorsport Atmospheric Blow Off Valve Kit for VAG 1.2 TSI (Up to 2015 Models)

The standard multi-vehicle VAG 1.2 and 1.4 TSI powerplants roll off the factory production line completely lacking any form of relief or dump valve mechanism. Consequently, drivers missing that classic high-performance acoustic response between gear shifts or during deceleration will find the Forge FMDV1 atmospheric solution to be an essential upgrade. This kit is meticulously engineered to fully replace the restrictive factory hard plastic pipe routing between the turbocharger and the inlet manifold with an optimized high-flow silicone hose assembly combined with a fast-acting, tuneable twin-piston valve mechanism.

Key Engineering Features

• Crisp Atmospheric Acoustic Release: Safely delivers the classic, iconic sporty boost relief acoustics without compromising vehicle driveability.
• Zero Check Engine Lights (No EML): Unlike cheap universal options, this precision VAG kit works perfectly with factory ECU maps.
• Flurosilicone Engine Lined Hoses: The included heavy-duty silicone hoses integrate a premium inner liner to handle hostile engine oils and O.A.T. coolants.
• Complete Hardware Bundle: Shipped with every required vacuum tap, block-off component, bracket, and hose clamp for a seamless home build.
• Market-Leading Durability: Machined from solid aerospace-grade aluminum billet and protected by a robust lifetime warranty.

Product Fitment Specifications

This premium performance enhancement kit is designed primarily to complement standard factory airbox setups and standard turbo layouts. Alternative custom hose colors are available globally across Red, Blue, or Black options to maintain structural adaptability across diverse vehicle builds. Please check your existing engine structure to ensure it matches early turbo plumbing layouts lacking integrated turbo-mounted bypass valves.

Recommended Product Additions

Forge Silicone Turbo Inlet Hose 1.2 TSI - FMINLH6

Installation Instructions

To safely carry out this modification using conventional garage hand tools, check the layout guide below:

Download Installation Instructions

Professional Installation at MGM Leeds

Get this kit professionally mounted and pressure tested by organizing a fitting slot directly with our expert team.

Book Installation at MGM Leeds

Vehicle Compatibility & Applications

This kit is verified for early 1.2 TSI variants (Engine codes: CJZA, CJZC, CJZD, CYVB) across these platforms: