Forge Motorsport Porsche 996/997.2/991 Recirculating Valves

Enhance your Porsche 911 Turbo's performance and responsiveness with the Forge Motorsport Recirculating Valve Kit, designed specifically for the 996, 997.2, and 991 Turbo models. Built as a direct, high-performance replacement for the factory diverter valves, these valves deliver faster response times, improved throttle feel, and long-term durability — all wrapped in a compact, visually refined package.

Unlike OEM valves, which are often non-serviceable and prone to failure under increased boost pressures, Forge’s recirculating valves feature a fully serviceable piston design. This ensures reliability in high-performance and track environments while allowing for routine maintenance or customization over time.

Each kit includes two uprated internal springs (yellow and blue) so you can fine-tune valve response based on your boost levels and driving style. The 25mm port size matches OEM fittings for a simple and direct installation with no modifications required. Designed, tested, and race-proven in high-powered Porsche applications, these valves offer unmatched reliability and are backed by Forge Motorsport’s Worldwide Lifetime Warranty.

Choose your preferred finish — matte silver or stealth black — to match your engine bay aesthetics.

Key Features:

• Fits Porsche 911 Turbo models: 996 Turbo (3.6L) and 991 Turbo (3.8L)

• Suitable for 996, 997.2, and 991 platforms

• Fastest responding piston-based diverter valve on the market

• Fully serviceable and rebuildable – unlike OEM valves

• Includes uprated yellow and blue springs for tuning flexibility

• 25mm port size matches OEM dimensions

• Competition-proven on high-performance Porsche builds

• Choice of matte silver or black finish

• Includes complete installation hardware and instructions

• Engineered, tested, and manufactured in Great Britain

• Backed by Forge Motorsport’s Lifetime Warranty

What’s Included:

• 2 x FMDV008 Recirculating Valves

• 2 x Uprated Yellow Springs

• 2 x Uprated Blue Springs

• 4 x 35mm Hose Clamps

• 2 x 2.5mm Allen Keys

• 2 x Cable Ties

• 2 x Instruction Manuals

• 2 x Forge Motorsport Stickers

If you’re unsure about fitment for your Porsche model, please contact us before ordering.

Vehicle Fitment:

• 2001–2005 Porsche 911 Turbo (996) – 3.6L

• 2010–2019 Porsche 911 Turbo (991) – 3.8L