Brian Crower Exhaust Valve Set +1mm Over STD Tip 33mm — Fits 02-09 WRX STI EJ205 EJ255 EJ257

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Boost Exhaust Efficiency with Brian Crower Performance Valves

Optimize your Subaru's exhaust cycle with this set of 8 Brian Crower +1mm Over Exhaust Valves. Tailored for the EJ205, EJ255, and EJ257 engines, these valves are essential for enthusiasts looking to push their 2002-2009 WRX or 2004-2009 STI to the next level. Featuring a 33mm diameter, these oversized valves facilitate superior exhaust gas scavenging, which is crucial for reducing backpressure and lowering combustion temperatures in turbocharged setups.

Key Features and Benefits

• Engine Fitment: Subaru EJ205, EJ255, and EJ257.
• Valve Size: +1mm Over Standard (33mm).
• Quantity: Complete set of 8 Exhaust Valves.
• Material: High-heat resistant alloys for maximum durability.
• Performance: Enhanced flow characteristics for improved turbo spool and power.

The exhaust side of your cylinder head is often the bottleneck in high-horsepower Subaru builds. By upgrading to Brian Crower's +1mm exhaust valves, you allow the engine to clear spent gases more efficiently, which directly correlates to increased power and improved engine longevity. These valves are designed for precision fitment and are built to withstand the intense heat associated with high-boost applications. Pair these with a performance camshaft and valve spring kit to fully realize the potential of your cylinder head. Whether you are building a daily driver with a bit more punch or a dedicated track car, these valves deliver the reliability you need. Explore our extensive catalog of engine components at GGCRACING.