Includes:
-Nippon Racing Performance Full Floating Turbo EJ255 style JDM pistons
-Hastings Performance Rings
-Hardned CIR Wrist Pin Clips
Fitment:
-Subaru EJ255 and EJ257 Engines.
-2004-2013 Impezza WRX STI
-2004-2013 Forester
-2005-2012 Legacy/Outback
-2004-2006 Baja
-Machined to Accept OEM Connection Rods
-Nippon Racing has redesigned these pistons to share the alloy of the far superior Subaru OEM Turbo castings.
-These pistons have the Deck and the Ring lands coated with an Anodized Knock Resistant Coating.
-The skirts have been Teflon coated to Eliminate potential hot spots, Resulting in less Friction and further aid in heat transfer to the cylinder walls.
-These pistons have been tested to support over 450 WHP with the proper tuning and supporting mods.
-Dome displacement has been matched to within .005 CC .
-This results in near identical cylinder compression, yielding more horsepower and better efficiency.
Available in 99.5mm Std, 100.0mm(.020"), 100.25mm(.030"), and 100.5mm (.040")