Wiseco Pro Tru line of pistons utilize a plasma moly pre-gapped ring set for the budget minded consumer. Wiseco Sport compact kits include the high quality NPR XX rings, which are the best quality steel nitrided top rings and napier style 2nd rings. Our late model EFI lineup and several small block Chevy pistons are designed around the our 1.2mm Steel Nitride and napier GFX ring sets. Many of our big block sets utilize a.043 back cut top ring for extra material thickness around the intake valve.
Unless Noted Rings Sold Individually Order Specific Quantity Needed
Application:
- 1999-2010 SUBARU FORESTER N EJ251 EJ253 16Valve SOHC
- 1999-2011 SUBARU IMPREZA N EJ251 EJ253 16Valve SOHC
- 2004-2012 SUBARU IMPREZA WRX STI WRX STI LIMITED WRX STI SPECIAL EDITION T EJ257
- 2000-2012 SUBARU LEGACY N EJ251 EJ252 EJ253 EJ259 16Valve SOHC