The OEM diverter is mounted on the turbo, and is built with a rubber seal, and a spring. Once vacuum from the intake manifold pulls on the diverter, the valve will open and release air from the turbo. Over time, the rubber seal becomes brittle and wont seal as well. The spring can become weaker as well, which will cause the diverter to not seal as well, and you'll loose boost pressure. Especially at higher boost pressures!

This is the fix for this. This made from scratch aluminum diverter is made in Great Britain, and is made to handle high boost pressures. It has brand new seals, aluminum piston and has variable springs for different boost pressures. This will hold your higher boost pressures and help restore some of the boost pressure that may have been leaking out.

This diverter comes with two springs, green is pre-installed for 15-22 psi, and a yellow accessory spring for higher boost levels.

Below is a video we made explaining the benefits of the Forge valve and why its better than the OEM diverter.

Below is a video of a Cobalt Turbo on YouTube demonstrating the Forge Diverter valve.

This Forge diverter valve fits the following vehicles:

• 2005-2010 Cobalt Turbo
• 2008-2010 Chevrolet HHR Turbo
• 2.0 Buick Regal Turbo
• 2008-2010 Pontiac Solstice
• 2008-2010 Saturn Sky Redline
• Cadillac CTS/CT6/XT4/ATS with 2.0 turbo engine