Brian Crower Intake Valves 37mm (+1mm head diameter) Subaru WRX 2002-2014 / STI 2004-2021 | BC3604-S vendor_Energy Suspension this arm provides:

this arm provides:

controllers

gloss black

Pro DRY S is the perfect choice for any vehicle type * Driving Conditions: Street/Dusty - Pro Dry S will provide extended filter life in normal

Brian Crower Intake Valves 37mm (+1mm head diameter) Subaru WRX 2002-2014 / STI 2004-2021 | BC3604-S vendor_Energy Suspension this arm provides:BC 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