Steel piston rings offer higher tensile strength, higher yield strength, greater fatigue life, and greater hardness while still offering a lower ring mass. These factors lead to better stress resistance, reduced groove pound-out, longer service life, better conformability, superior oil economy, and improved blow-by control while still lowering friction.
The MAHLE Original CP-20? ring sets have raised the bar of quality regarding piston rings ?plus their ease of installation makes them the premier choice for rebuilders everywhere. The CP-20 rings can withstand the harsh operating environments in today's engines. The CP-20 consists of a barrel-faced top compression ring for better seal and quicker break-in, a reverse torsional twist second ring for better oil control, and a new CP-20 design oil ring that is easier to install ? chemically polished for better oil drain-back and a 20? ear angle to ensure side seal around the ring.