Brian Crower Subaru EJ205/EJ207/EJ257 Series Dual Spring/Titanium Retainer/Spring Seal Kit

Upgrading your valve springs and retainers is the best way to help your car rev higher. If you are looking to increase the horsepower of your engine, your may have considered rebuilding the head. When rebuilding your engine's head, we recommend upgrading your valves, and springs. This will increase airflow and the RPM of your engine. Brian Crower, Inc. was created to fill the need for high quality, high performance, late model internal engine components, in stock, at very affordable prices. Premium grade 6AL4V titanium retainers, 100% RC checked for hardness, and super clean chrome silicone spring wire for the highest rpm range possible. Every product line is tested on precision measuring instruments for accuracy, imperfections and metallurgy. Dyno tested and tuned for optimum results.