Forged Piston Set

The Mahle PowerPack 81.5MM Bore 9.0:1 CR Piston Set is engineered for enhanced strength and performance in the 2.7T 30V engine. Mahle's design incorporates forged side reliefs and a slipper skirt profile to significantly reduce weight and minimize friction, contributing to overall efficiency. Key features of these pistons include ultra-flat ring grooves, which are crucial for achieving excellent ring seal and preventing micro-welding during the critical break-in period. Each piston set is further enhanced with Mahle's exclusive Grafal skirt coating. This advanced coating provides anti-friction properties and acts as an impact absorber, effectively reducing piston noise and mitigating stresses on the piston skirt, thereby extending component life. Mahle PowerPack Pistons are an ideal choice for enthusiasts seeking a lightweight piston upgrade that maintains OEM fit and finish while providing superior strength. They feature a 21mm wrist pin, necessitating the use of connecting rods specifically designed for 21mm pins. The specifications include an 81.5mm bore, 86.4mm stroke, use with 154mm rods, and a 9.0:1 compression ratio, complete with rings and pins. These pistons are manufactured in the USA and are legal for US emissions (Code 1).