Brian Crower Intake Valves 37mm (+1mm head diameter) Subaru WRX 2002-2014 / STI 2004-2021 | BC3604-S 900 This model features an upgraded

This model features an upgraded billet compressor wheel that produces an additional 10% flow horsepower compared to the factory cast wheel

Rear Spring Rates: 8

These lug nuts weigh in at just 0

Part #: AV0618855H35BK

Brian Crower Intake Valves 37mm (+1mm head diameter) Subaru WRX 2002-2014 / STI 2004-2021 | BC3604-S 900 This model features an upgradedBC valves are made from premium stainless steel, fully machined and swirl polished for ultimate air flow. Dished head for added weight savings and increased valve control at high rpm. Standard and oversize head. To ensure you get the correct length valves you must measure your stock valves as Brain Crower valves are available in 106. 12mm over all length. Notes: Sold in sets of 8. Oversized valves required headwork to be compatible. Must specify long