What does 'file fit' mean for these piston rings?

File fit means the ends of the piston rings are not pre-gapped. You will need to measure your cylinder bore and file the ends of the rings to achieve the correct gap clearance specified by the engine builder or Manley Performance for your specific application.

What is included in this set?

This set includes a complete set of piston rings for all four cylinders of your engine. It contains the top compression ring, second compression ring, and oil control ring for each piston.

Specifications

Brand: Manley Performance
Part #: 46925DT-4
UPC: 807298101125

Manley Ring Set EJ205 WRX / EJ257 WRX STi 92.5mm Bore File Fit - 1.2mm / 1.2mm / 2.8mm - Set of 4

Name: Manley Ring Set EJ205 WRX / EJ257 WRX STi 92.5mm Bore File Fit - 1.2mm / 1.2mm / 2.8mm - Set of 4
Brand: Manley Performance
SKU: manley-performance-manley-ring-set-ej205-wrx-ej257-wrx-sti-92-5mm-bore-file-fit--t14-112593
Price: 194.61 USD
Availability: InStock

$194.61

Only 2 left in stock

Manley Performance piston ring set for EJ205 and EJ257 engines. 92.5mm bore, file fit.

Key Features

Fits Subaru EJ205 and EJ257 engines.
Designed for a 92.5mm bore.
File-fit design requires gapping for proper installation.
Includes top ring (1.2mm), second ring (1.2mm), and oil ring (2.8mm).
Set includes rings for all four cylinders.
Manley Performance is known for durable engine components.

This piston ring set is designed for Subaru EJ205 and EJ257 engines with a 92.5mm bore. Not CARB approved; cannot ship to California.

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About this part

Product Details

Manley Performance is well-known for making strong internal engine components, and this piston ring set is a good example of their work for Subaru EJ205 and EJ257 engines. These rings are designed for a 92.5mm bore and feature a file-fit design, meaning you'll need to gap them to your specific application for optimal performance and sealing. The ring dimensions are 1.2mm for the top ring, 1.2mm for the second ring, and 2.8mm for the oil ring.

This set includes all four cylinders, ensuring you have what you need for a complete engine rebuild. The file-fit nature allows for precise control over ring-to-wall clearance, which is crucial for managing compression and oil consumption, especially in performance applications. Proper gapping is essential for these rings to function correctly and prevent damage.

Please note that this part is not CARB approved and cannot be shipped to California. Always refer to the manufacturer's installation instructions for proper gapping and assembly procedures.