![BMW N54 STD TURBO](http://traumpistons.com/cdn/shop/files/image_a796a37a-6688-49d2-9cc0-c8c597859dd8_{width}x.heic?v=1682361759)
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