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Manley Performance Manley Ring Set Subaru EJ205WRX / EJ257 WRX STi 100mm File Fit 1.2mm x 1.2mm x 2.0mm - Set of 4
Manley Performance Manley Ring Set Subaru EJ205WRX / EJ257 WRX STi 100mm File Fit 1.2mm x 1.2mm x 2.0mm - Set of 4
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Manley Ring Set Subaru EJ205WRX / EJ257 WRX STi 100mm File Fit 1.2mm x 1.2mm x 2.0mm - Set of 4

MAN461000DT-4
807298101163
Piston Rings
20+ Units In Stock - Ships Next Business Day
$ 173.17 $ 164.51
$ 164.51

SKU: 461000DT-4 | UPC: 807298101163

Manley Ring Set Subaru EJ205 WRX EJ257 WRX STI 100mm File Fit 1.2mm x 1.2mm x 2.0mm Set of 4 2002-2021

Manley piston ring set provides exact-fit seals for 100mm bores in Subaru EJ205 and EJ257 engines found in 2002-2021 WRX and STI models. These file-fit rings ensure optimal compression and oil control under high boost and rpm. Built for performance builds this set handles turbocharged demands with reliable durability.

Key Features

  • File-Fit Design: Allows custom end gap filing for precise clearance in 100mm bores matching any piston set
  • Ring Dimensions: 1.2mm top ring 1.2mm second ring 2.0mm oil ring for minimal friction and maximum sealing
  • Advanced Materials: Chrome-faced steel top ring nitrided ductile iron second ring and three-piece flex-vent oil control for heat resistance
  • Performance Engineering: Supports high boost levels up to 40psi with reduced blow-by and consistent power delivery
  • Complete Set: Includes rings for four cylinders covering all pistons in EJ series flat-four engines

Product Notes

  • File rings to achieve proper end gaps based on bore size and piston specs before installation
  • Store in original packaging away from moisture to maintain ring integrity
  • Ships in protective box measuring 6in x 4in x 1in

Installation Notes

  • Professional installation recommended.
  • Verify end gaps using feeler gauge and file square ensuring 0.004-0.005in per inch of bore for top ring
  • Compatible with standard Subaru pistons resized to 100mm no special hardware needed

This Part Fits

Year Make Model Submodel
2002-2005 Subaru Impreza WRX
2004-2007 Subaru Impreza WRX STI
2008-2014 Subaru Impreza WRX
2008-2021 Subaru Impreza WRX STI
2015-2021 Subaru WRX STI

Why Choose Manley?

  • Proven in motorsports from drag racing to rallycross
  • Crafted with tight tolerances for consistent engine performance
  • Backed by engineering focused on high-horsepower Subaru builds

Frequently Asked Questions

  • Q: Does this fit both EJ205 and EJ257 engines?
    A: Yes designed for 100mm bores in EJ205 WRX and EJ257 STI engines across 2002-2021 models after boring
  • Q: What materials are used in these rings?
    A: Top ring is reverse bevel chrome-faced steel second is nitrided ductile iron oil ring is three-piece steel flex-vent for durability
  • Q: What warranty applies?
    A: Manley offers limited lifetime warranty against manufacturing defects when installed correctly

Shipping & Handling

  • Method: UPS Ground or USPS Priority
  • Availability: In stock - ships same or next business day
  • Packaging: Secure padded box 6 x 4 x 1 inches
  • Weight: 0.65 lbs

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