Engine jerking, stalling, or hesitation when your vehicle is in motion could indicate a worn-out exhaust or intake valve in need of replacement. Valve and spring kits from Psychic MX Components are manufactured to OEM specifications and feature corrosion and oxidization resistance to make for a first-rate, heavy-duty replacement. Valves are made from lightweight stainless steel with a one-piece design for improved flow and performance. Springs are made from an ultra-high-strength alloy that has been machined to precise specifications before being heat-treated to increase strength and durability. Valve and spring kits from Psychic MX Components are available for a variety of applications, at a price unlike any other on the market.