Supertech Dual Valve Spring Kit w/ Titanium Retainers Nissan Skyline RB25 DOHC w/Solid Lifters | SPRK-TS1015-RB25 Impreza_2008-2011 and Autocross & Track Events

and Autocross & Track Events

More durable than factory rubber bushings

and customer support to help you get the best results

Helps regulate crankcase pressure

Supertech Dual Valve Spring Kit w/ Titanium Retainers Nissan Skyline RB25 DOHC w/Solid Lifters | SPRK-TS1015-RB25 Impreza_2008-2011 and Autocross & Track EventsOverview The Supertech SPT Dual Valve Spring Kit (SPRK TS1015 RB25) is a high performance valve spring upgrade engineered specifically for the Nissan Skyline RB25 DOHC 24 valve engine equipped with solid lifters. Designed for serious performance builds, forced induction applications, and high rpm race engines, these dual valve springs provide dramatically increased spring pressure and improved valve control far beyond OEM specifications. Whether