MAHLE 8250MS-10 Performance Piston Ring Set Bore - 82.5mm

The MAHLE 8250MS-10 is a high-performance piston ring set designed for serious motorsport and performance engine builds. This precision-engineered ring set features an 82.50mm bore diameter and is specifically designed for four-cylinder applications using forged MAHLE Motorsport pistons.

Key Specifications:

• Bore Diameter: 82.50mm (3.248 inches)
• Ring Thickness Dimensions: 1.00mm x 1.20mm x 2.8mm
• Configuration: Set for four cylinders
• Application: Forged MAHLE Motorsport pistons
• File-fit design for precise installation

MAHLE pioneered advanced piston ring simulation and computer development to engineer rings that deliver measurable horsepower gains by minimizing friction. These performance rings feature ultra-flat ring flanks and precision finishes that maximize ring-to-piston sealing for improved combustion efficiency and reduced blow-by. The set includes a steel top ring with advanced coating technology for superior bonding and scuff resistance, a reverse-twist cast iron second ring for optimal oil control, and a three-piece oil control ring assembly. Built for racing applications including circle track, road racing, and high-performance street builds where reliability and power are critical.