Manley Performance

The Manley upgraded beehive valve spring and titanium retainer set is a great choice for Subaru EJ20 / EJ25 engines with upgraded camshafts that require valve springs for increased lift and higher...

The Manley upgraded valve spring and titanium retainer set is a great choice for Subaru EJ20 / EJ25 engines with upgraded camshafts that require valve springs for increased lift and higher RPM use...

The Manley upgraded beehive valve spring and titanium retainer set is a great choice for Subaru EJ20 / EJ25 engines with upgraded camshafts that require valve springs for increased lift and higher...

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

Manley Subaru WRX/STi (1.050/.755) 16pc Titanium Retainers (for use with 22180-16 Springs)

Manley 00-03 Subaru WRX (EJ20) / 04 STi Exhaust 32mm Stainless Extreme Duty Valve

Manley 00-03 Subaru WRX (EJ20) / 04 STi Exhaust 32mm Stainless Race Master Valve (Single)

Manley 00-03 Subaru WRX (EJ20) / 04 STi Exhaust 32mm Stainless Race Master Valves

Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems...

Manley Extreme Duty 32mm Exhaust Valve Set WRX / STI (8) . Manley valves are made from an ExtremeAlloy XH-426 Stainless. The valves feature swirl polishing, are fully machined with chrome stems and...

Manley Extreme Duty 33mm Exhaust Valve Set WRX / STI (8) . Manley valves are made from an ExtremeAlloy XH-426 Stainless. The valves feature swirl polishing, are fully machined with chrome stems and...

Manley Extreme Duty 33mm Exhaust Valve Set WRX / STI (8) . Manley valves are made from an ExtremeAlloy XH-426 Stainless. The valves feature swirl polishing, are fully machined with chrome stems and...

Manley Race Flo 36mm Intake Valve Set For Subaru WRX / STI (8). Manley Intake valves are made from NK-842 Stainless, are Swirl Polished, Fully Machined, feature Chrome Stems and Hard Tips.Type:...

Manley Race Flo 37mm Intake Valve Set For Subaru WRX / STI (8). Manley Intake valves are made from NK-842 Stainless, are Swirl Polished, Fully Machined, feature Chrome Stems and Hard Tips.Type:...

Manley Race Flo 37mm Intake Valve Set For Subaru WRX / STI (8). Manley Intake valves are made from NK-842 Stainless, are Swirl Polished, Fully Machined, feature Chrome Stems and Hard Tips.Type:...

Manley Subaru WRX EJ205/STi EJ257 33mm Race Master Exhaust Valves (Set of 8)

The Manley Pro Series I-Beam Connecting Rod Set is forged from 4340 aircraft quality vacuum degassed material. Each rod is shot peened after machining to MIL spec. The rods are 100% individually...

The Manley Subaru EJ25 2.7L stroker crankshaft is manufactured from premium multi-heat treated lightweight 4340 billet steel and nitrided for additional strength. The crank features fully profiled...

Manley's Turbo Tuff Extreme Duty pistons are manufactured from 2618 high strength material. The lightweight forging features an offset wrist pin design for quieter startups. The Extreme Duty series...

Manley .054 Round Wire Lock (Set of 8)

Manley .054 Round Wire Lock (Single Lock)

Experience the pinnacle of connecting rod technology with our Pro Series rods, designed for ultimate performance.Superior Materials: These rods are available in two exceptional materials: forged 4340...

Experience the pinnacle of connecting rod technology with our Pro Series rods, designed for ultimate performance.Superior Materials: These rods are available in two exceptional materials: forged 4340...

2618 Alloy Forgings: We use domestic 2618 alloy forgings, ensuring superior strength and performance.Chrome Moly Wrist Pins: Premium Chrome Moly wrist pins come standard with our Standard Series...

Manley 04+ Subaru WRX STi (EJ257) 75mm DE-STROKED 100mm +.5mm Bore 8.5:1 Dish Piston (SINGLE Piston)

2618 Alloy Forgings: We use domestic 2618 alloy forgings, ensuring superior strength and performance.Chrome Moly Wrist Pins: Premium Chrome Moly wrist pins come standard with our Standard Series...

Manley pistons are machined of high strength 2618 material. Each design is lightweight yet robust enough to deliver long service life. Offset wrist pin design is utilized for quiet start-ups. Perfect...

2618 Alloy Forgings: We use domestic 2618 alloy forgings, ensuring superior strength and performance.Chrome Moly Wrist Pins: Premium Chrome Moly wrist pins come standard with our Standard Series...

2618 Alloy Forgings: We use domestic 2618 alloy forgings, ensuring superior strength and performance.Chrome Moly Wrist Pins: Premium Chrome Moly wrist pins come standard with our Standard Series...

2618 Alloy Forgings: We use domestic 2618 alloy forgings, ensuring superior strength and performance.Chrome Moly Wrist Pins: Premium Chrome Moly wrist pins come standard with our Standard Series...