GSC 4B11 Evo X Exhaust Valves Select::Super Alloy +1 30mm Set of 8 (GSC2027-8) Swift coilover assist springs are

Swift coilover assist springs are available in 60mm ID or 65mm with various spring rates

Dual channel model includes a headset

Diagram reference number 52350

GT Series turbochargers have you covered

Adding the -10AN bung on the underside of the pipe is allows you to use the STM Sealed Catch Can which vents from the can to the intake pipe

GSC 4B11 Evo X Exhaust Valves Select::Super Alloy +1 30mm Set of 8 (GSC2027-8) Swift coilover assist springs areGSC Power Division exhaust valves for the 4B11 Evo X. Exhaust valves are sold as a set of 8 or individually as needed. Choose the standard modified 23 8N stainless material or 2000F Super Alloy. Available in the standard 29mm size or +1mm oversized. Valve stem diameter is 5. 5mm, overall length is 105. 85mm. Vehicle Fitment: Mitsubishi 4B11 2008 2015 Evolution X GSC Exhaust Valves: Part Number: Head Diameter Size: Material: Quantity: GSC 2021 8 STD