Porsche Mahle Motorsport 100mm 12.0:1 Porsche 3.8 997 Piston Set Nikasil Bore 197846037 99654301606PRM You will also need the

You will also need the locking mechanism covers (#644

911 Speedster (1994) and Boxster (1997-2002) models

It's recommended to use silicon GREASE when installing

unlike the plastic versions

Porsche Titanium metallic center cap with Porsche® crest for Cayenne models

Porsche Mahle Motorsport 100mm 12.0:1 Porsche 3.8 997 Piston Set Nikasil Bore 197846037 99654301606PRM You will also need thePorsche Stock replacement 100mm Mahle Motorsports Piston set for 05 08 Porsche 911 997 3. 8. Also fits 02 08 996 and 997 3. 6 engines when block has been sleeved and increased in bore size to 100mm from the original 96mm. Compatible with Nikasil bores. Not compatible with stock Lokasil bores. Includes rings, pins, and clips. Manufacturer Specs: 100. 0mm x 32. 95mm CH,82. 8mm stroke,141. 99mm rod,22mm pin, 13. 2cc,423g,12. 0CR, 4032.