MAHLE and Porsche have been partners since the early days of Porsche. All that experience goes into MAHLE's Big Bore Kits and pistons for Porsche applications. 

HMR/MAHLE world exclusive
968 16v turbo piston, forged 104.50mm
8.5:1 CR
           <Currently in stock>

HMR/MAHLE
944 NA 8v pistons, forged
100.00mm, 100.50mm, 101.00mm
10.2:1 CR
Direct Replacement, used by POC, PCA, SCCA, 944 cup
           <Currently in stock>

Both feature a proprietary piston coating specific to Porsche 944/968, designed to work in Alusil block