These Ferrea Pro CNC Titanium Retainers reduce valvetrain mass on the Acura/Honda B17A1 engine for improved valvetrain stability and added horsepower. They use a 7-degree lock angle for Ferrea double-spring setups. Sold as a set of 16.
| Type | Pro CNC titanium retainers (double spring) |
| Application | Acura/Honda B17A1 |
| Lock Angle | 7° |
| Quantity | Set of 16 |
| Part Number | E11000 |
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