GSC P-D Single Beehive Valve Spring & Titanium Retainer Kit - Subaru WRX 2015-2020 / Scion FR-S 2013-2016 / Subaru BRZ 2013-2020 / Toyota 86 2017-2020 GTO BC premium valves guides are

BC premium valves guides are made from Manganese Silicon Aluminum Bronze alloy and CNC machined to exacting tolerances

a true performance downpipe is required to open up the exhaust flow and allow the turbo to spin freely

4 INCH CARBON INLET PIPE

NOTE: Open-ended lug nuts are required for these studs in most cases (sold separately)

volume is reduced for a more low-profile comfortable drive

GSC P-D Single Beehive Valve Spring & Titanium Retainer Kit - Subaru WRX 2015-2020 / Scion FR-S 2013-2016 / Subaru BRZ 2013-2020 / Toyota 86 2017-2020 GTO BC premium valves guides areGSC5056 Beehive Valve Spring Kit with Ti Retainer for Subaru FA20 Setup Coil Bind (in) Install Height (in) Seat Pressure (lbs) Open Pressure, 11. 0mm Lift Maximum Valve Lift (in) Beehive 0. 800 1. 293 1. 300 94 92 236lbs @ 0. 860" 234lbs @ 0. 867" 0. 433 Max RPM: 9,500 RPM Max boost: 35 psi The GSC Power Division Beehive Spring Kit with Titanium Retainers for the Subaru 2015 WRX, BRZ and Scion FRS includes 16 titanium retainers, 16 beehive valve