Manley Valve Springs & Retainers (.510" Max Lift) for EJ WRX/STi
Manley Performance valve springs and retainers for the EJ20/EJ25 Subaru WRX and STi are available as the full set, or separately as 16 springs or 16 titanium retainers. These sets have a max-lift of 0.510 inch.
Vehicle Fitment:
EJ20/EJ25
2002-2014 Subaru WRX
2004-2021 Subaru STi
Titanium Retainers:
• Heat treated aerospace grade titanium
• CNC machined to exacting tolerances
• Lightweight and extremely durable
• A must for your high revving sport compact engine
Valve Springs:
• Wound from super clean alloy
• Designed to handle aftermarket camshafts

Vehicle Fitment:
EJ20/EJ25
2002-2014 Subaru WRX
2004-2021 Subaru STi
Titanium Retainers:
• Heat treated aerospace grade titanium
• CNC machined to exacting tolerances
• Lightweight and extremely durable
• A must for your high revving sport compact engine
Valve Springs:
• Wound from super clean alloy
• Designed to handle aftermarket camshafts
| EJ20/EJ25 Kits: | |
| Part Number 26185 | Includes 16 Springs & 16 Titanium Retainers |
| Part Number 22185-16 | Includes 16 Springs |
| Part Number 23185-16 | Includes 16 Titanium Retainers |
| EJ20/EJ25 Titanium Retainer Specs: | |
| Valve Stem Diameter: | 6.0mm |
| Valve Lock Degree | 6° |
| Weight: | 5 grams |
| EJ20/EJ25 Single Spring Specs: | |
| Max Net Lift: | 510" |

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