Manley Subaru WRX/STI (EJ20/EJ25) 16pc Valve Springs (1.126/.640) (For use w/ 23185-16 Retainers) - 22185-16

Engineered for today’s high-revving sport compact engines, Manley valve springs deliver exceptional durability, precise control, and consistent performance. Manufactured from premium alloys and designed for demanding turbocharged and naturally aspirated...

Manley Subaru WRX/STI (EJ20/EJ25) Valve Springs (1.126/.640) *ONE SPRING*16.35 - 22185-1

Engineered for today’s high-revving sport compact engines, Manley valve springs deliver exceptional durability, precise control, and consistent performance. Manufactured from premium alloys and designed for demanding turbocharged and naturally aspirated...

Manley Subaru WRX/STi .490in Valve Spring and Retainer Kit (w/o Valve Locks) (16 each) - 26185

Manley Performance Valve spring and Retainer Kits take the guess work out of making your valvetrain race-ready. Engineered for maximum durability, stability, and precision in high-performance and racing applications, these chrome-silicon alloy springs...

Manley Subaru WRX/STI 16pc Valve Springs (1.050/.755) (for use with 23180-16 Retainers) - 22180-16

Engineered for today’s high-revving sport compact engines, Manley valve springs deliver exceptional durability, precise control, and consistent performance. Manufactured from premium alloys and designed for demanding turbocharged and naturally aspirated...

Manley Subaru WRX/STI EJ20/EJ25 5.216in Center to Center H-Tuff Beam Connecting Rod Set - 15036-4

When it comes to H-Beam connecting rods, not all are created equal. Manley's H-Beam Series stands out as a superior choice, offering exceptional quality at an economical price point. These connecting rods are meticulously crafted to meet the same...

Manley Subaru WRX/STI EJ20/EJ25 5.216in Center to Center H-Tuff Beam Connecting Rod Single - 15036-1

When it comes to H-Beam connecting rods, not all are created equal. Manley's H-Beam Series stands out as a superior choice, offering exceptional quality at an economical price point. These connecting rods are meticulously crafted to meet the same...

Manley Subaru WRX/STi Valve Spring and Retainer Kit (w/o Valve Locks) (16 each) - 26180

Manley Performance Valve spring and Retainer Kits take the guess work out of making your valvetrain race-ready. Engineered for maximum durability, stability, and precision in high-performance and racing applications, these chrome-silicon alloy springs...

Manley Super 7 Degree Valve Locks (.3415) Conventional - Set of 16 - 13084-16

Manley Super 7 Degree Valve Locks (.3415) Conventional - Set of 16

Manley Super 7 Degree Valve Locks (16 pair) - 13083-16

Manley Super 7 Degree Valve Locks (16 pair)

Manley Super 7 Degree Valve Locks -.050 Height (.3415) Conventional - Set of 16 - 13081-16

Manley Super 7 Degree Valve Locks -.050 Height (.3415) Conventional - Set of 16

Manley Super 7 Degree Valve Locks 5/16 (.3110) - Set of 1 - 13080-1

Manley Super 7 Degree Valve Locks 5/16 (.3110) - Set of 1

Manley Swedged End 4130 Chrome Moly Pushrods 7.900in Lenth 0.120 Wall 5/16in Diameter (Set of 16) - 25237-16

Manley Performance Pushrods are engineered to deliver uncompromising strength, stiffness, and valvetrain stability in today’s high-performance engines. Manufactured from premium materials and precision heat-treated for maximum durability, Manley pushrods...