Ferrea Competition Plus Exhaust Valve 29mm Scion FR-S 2013-2016 / Subaru BRZ 2013-2020 vendor_Version Select while reducing friction and insures

while reducing friction and insures high lubrication even at elevated engine temperatures and rpm's

AEM also incorporated a fail safe that provides output to either decrease timing

Carrillo H-beam rods are recommended for race applications where no compromise in performance is possible

34% increase in air surface area (fins)

Ferrea Competition Plus Exhaust Valve 29mm Scion FR-S 2013-2016 / Subaru BRZ 2013-2020 vendor_Version Select while reducing friction and insuresPart #: F2356P SUBARU BR Z EXHAUST, Stock Size COMPETITION PLUS ENGINE VALVES Specs: Exhaust Head Diameter: 29 mm Stem Diameter: 5. 45 mm Overall Length: 95. 30 mm Tip Length: 7. 5 mm Reference: 29" Flo. Flat head. Stock size. Super Alloy