BMW N54 pistons- 10.5:1 compression ratio- come in 84.0 and 84.5 bore sizes- will also fit N55 engines with compression dropping to 10:1- see N55
***REPLACEMENT RINGS USE R121230840PVH or R121230845PVH
BMW N54 pistons- 10.5:1 compression ratio- come in 84.0 and 84.5 bore sizes- will also fit N55 engines with compression dropping to 10:1- see N55
***REPLACEMENT RINGS USE R121230840PVH or R121230845PVH