Company23 Piston Ring Compressor FR-S 2013+ / BRZ 2013+ / WRX 2015+ / Forester 2011+ GTR_1995-1998 It's not mandatory but it

It's not mandatory but it is suggested that any valve lock not be reused on performance applications do to material grooving

Monitor your engine temperature with more precision

52mm (2 1/16”) OLED user-configurable display

In addition to the OEM oil filter from Subaru

Company23 Piston Ring Compressor FR-S 2013+ / BRZ 2013+ / WRX 2015+ / Forester 2011+ GTR_1995-1998 It's not mandatory but itPart #: COP 533 Having vital tools is key to having a successful engine rebuild. And with any Company 23 tool, you are on your way to the right path. This is the Company 23 FA20 FB20 Piston Ring Compressor. With this tool, users can properly guide the piston into the bore without any damage. This tool has been CNC machined from tempered and anodized aerospace grade alloy. This tool is also adjustable for those of you who need to work with both stock,