SPA mid-size wastegate is a step-up from the compact design. The SPA mid-size wastegate is still a small package but is able to handle uo to 300whp per wastegate utilizing its 35mm one piece alloy valve. Made with a new low-profile/hi-flow designed base for those tight fitment needs. This fully adjustable wastegate is made with a rigid cast iron body, stainless steel internals and aluminum top. • Composite wastegate, good up to 350 HP • 35mm valve • Teflon ring around membrane • Fully adjustable spring rate • Comes in “S” style flange for SPA Turbo manifolds