The Splitter, a Recirculation and Blow Off Valve (For VAG 1.8T Engines)

The The Splitter, a Recirculation and Blow Off Valve (For VAG 1.8T Engines) is a vehicle-specific upgrade from Forge Motorsport, engineered for reliable boost-pressure control and improved durability in demanding standard or tuned applications. This listing is intended for A3, S3, Golf and Passat 8L, MK4, 9N and B5 applications; check the fitment and technical notes below before ordering.

Rather than using generic application text, the specification below is based on the manufacturer information supplied for this product. Where engine codes, model years, factory equipment or tuning requirements are stated, these should be treated as part of the fitment requirements.

Vehicle fitment

• Make: Audi and Volkswagen
• Model: A3, S3, Golf, Passat, Polo GTI, A4, A6, Beetle, TT and Bora
• Chassis / variant: 8L, MK4, 9N, B5, MK1 and B6

Product details

• Combination of blow off and recirculation
• Brass piston
• Easy service
• Designed, machined, and hand assembled in the UK
• Lifetime warranty

The Splitter is a truly remarkable valve that gives a combination of blow off and recirculation valve operation, all at the same time, and has been specifically designed for the many turbo engined applications that operate metered airflow management systems. This means you get all the noise of the blow off valve whilst retaining the compatibility with the recirculation requirements of the engine management system. As a bonus we also offer the ability to convert the valve to recirculation only mode for those times when stealth running is required.

⭐ Clear instructions and overall a great product, best on the market ⭐

This valve uses a brass piston which utilises new sealing technology along with a variable spring preload, incorporating a ratchet type top adjuster that will allow for the positive and precise adjustment to match the valve to your engine. This is achieved by using a unique single, conical, progressive rate spring, that can allow for the retention of boost pressure over a wide adjustment range. This unique spring design also allows for unrestricted piston travel and flow volume regardless of the amount of pre-load adjustment added to the spring.

Other manufacturers' valves use cylindrical springs with adjustable pre-load, which often experience restricted piston travel and a reduction in flow volume. When we say our products are Engineered For Performance, it's not a catchy sales phrase, it's the truth. and we prove it with every product we manufacture.

Note: This valve requires installing the opposite way to the original Bosch Valve. This means that the side pipe is fitted into the Turbo Intake Hose, and the base pipe connects to the hose that runs to the boost side of the turbo.

In The Box:
1 x FMDVSPLTR Valve
1 x Valve Blanking Cap
1 x Instruction Booklet
1 x Forge Sticker

If you are unsure if this product is suitable for your application, please contact us.

The valve has a port size of 25mm

We recommend servicing your valve every 3 years, or 20,000 miles, whichever comes sooner

To service this valve, access the valve piston by removing the 3 cap screws at the base of the valve and simply clean the piston chamber using brake cleaner or similar cleaning fluid before installing the new spring and

Vehicle compatibility

• Make: Audi and Volkswagen
• Model: A3, S3, Golf, Passat, Polo GTI, A4, A6, Beetle, TT, and Bora
• Chassis / generation: 8L, MK4, 9N, B5, MK1, and B6

Ordering & fitment

Please use the vehicle application, engine code and specification information above to confirm compatibility. If your vehicle has been modified or differs from the stated application, confirm fitment before ordering.

We understand it can be a bit confusing to figure out if a part will work for your car. No worries! Just shoot us a message with your question, and our friendly sales team will then be in touch to confirm if this part is the correct for your vehicle!

Disclaimer:

Products sold by Nineteen72 Performance are exclusively designed for off-road or sanctioned competition use. Any use on public roads is strictly prohibited and may violate local, state, and federal laws. Nineteen72 Performance does not confirm the legality of road use; it is the consumer's responsibility to comply with applicable laws. Use of these products for any purpose other than intended is at the user's own risk. Nineteen72 Performance is not liable for misuse or non-compliance.

Warranty:

At Nineteen72 Performance, we proudly back every product in our store, ensuring that each item comes with a comprehensive warranty.

All components crafted by our esteemed third-party partners in the store are accompanied by a minimum one-year manufacturer's warranty. Our warranty terms are uniform across all products, providing coverage for any manufacturing defects that may arise over time, excluding typical wear and tear. Your satisfaction and product durability are our top priorities.

Shipping & Returns:

At Nineteen72 Performance we offer worldwide shipping.

14-Day Easy Returns at Nineteen72 Performance

Love what you bought from Nineteen72 Performance? Great! If not, no worries. Enjoy a hassle-free 14-day return window. Just ensure your items are unused and in their original condition. For returns, contact us at Returns@Nineteen72Performance.co.uk. Your satisfaction drives us.

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