Product details:

Direct replacement for factory diverter valves with stiffer spring allow for more of a consistent boost pressure while removing the honking sound cause from OEM valves failing, sold as a pair.

Features:

-fits all Porsche 996 GT2 vehicles (2001-2005)
-direct replacement diverter valves will eliminate the notorious honking sound commonly heard when the OEM valves have failed.
-c.n.c. Machined from billet aluminum.
-stiffer spring to allow for more consistent boost pressure
-successfully tested and used on stock unmodified 996 tt cars up to heavily modified +1000 hp cars. Available in silver or black. A great upgrade that everyone will eventually have to do on a maintenance basis anyway
-all fabspeed performance products are backed by the fabspeed lifetime limited warranty