Brian Crower Exhaust Valve Set for 02-09 WRX/STI EJ205/EJ255/EJ257 +1mm Tip 33mm

Brian Crower Exhaust Valve Set for 02-09 WRX/STI EJ205/EJ255/EJ257 — +1mm Tip (33mm) Upgrade your Subaru's engine breathing with the Brian Crower Exhaust Valve Set engineered specifically for 2002–2009 WRX and 2004–2009 STI models equipped with EJ205, EJ255, or EJ257 engines. These high-performance exhaust valves feature a +1mm over standard tip and a 33mm head diameter for improved flow and durability. Direct fit: Designed to match factory dimensions for easy installation in EJ205/EJ255/EJ257 cylinder heads. +1mm tip: Slightly larger tip increases exhaust flow for better scavenging and throttle response without sacrificing seat sealing. 33mm head: Optimized diameter for balanced flow and combustion stability across the rev range. Brian Crower quality: Precision-ground stems and hardened surfaces resist wear and deliver consistent performance under high RPM and boost conditions. Ideal for tuned engines: Perfect for builds with upgraded cams, turbo, or increased boost where exhaust flow and valve durability matter. Whether you're building a street/track car or upgrading for longevity and power, these Brian Crower exhaust valves provide a reliable, performance-focused solution tailored to Subaru EJ engines.