M20 2.5L Mahle Motorsport Piston Set

Developed in collaboration with Mahle Motorsport, this PowerPak piston set is engineered specifically for the BMW M20B25. It delivers real performance gains without stroking your engine — especially when paired with our Super Sport cylinder head and performance camshaft. Built from Mahle's proprietary M142 alloy, these pistons deliver OE-like reliability without the longevity trade-offs of a typical forged piston.

• 10:1 Compression Ratio
• 85mm Bore Size
• 135mm Connecting Rod Length
• 75mm Stroke
• Designed for 885 Cylinder Heads
• Mahle Motorsport M142 Alloy
• Phosphate Coated
• Grafal Anti-Friction Piston Skirt Coating
• High Strength Lightweight German Wrist Pins
• Race Proven Round Wire Wrist Pin Locks
• Low Drag Piston Ring Pack
• Lightweight Slipper Skirt Forgings

Mahle Motorsport's PowerPak kits include wrist pins, wrist pin clips, and piston rings engineered for motorsport and high-performance street applications. Backed by over 95 years of performance expertise and manufactured on Mahle's own machinery — make no compromises.