This 12° VHM piston is specially developed for a maximum performance gain. It must be used in combination with a VHM 12° insert and head. This piston is 100% CNC machined from high quality material and has a non-circular profile. They stand for high performance, longevity and keeping high performance during it's lifetime.
Use in combination with VHM insert AE32281-013 (2018 - 2019), AE32226-056 (2013 - 2017) or AE32087-112 (2004 - 2012) and complementary VHM head AA33171 (2018), AA33145 (2013 - 2017) or AA33068 (2004 - 2012).
This piston needs a clearance of 0.05mm! Must be used in combination with a VHM 12° insert and head.