These parts will fit F55/56/57. Bar will not fit F54.
I have a like new 22mm NM Rear Sway Bar available for someone looking for a good deal. Also included is a set of billet mounting clamps with Zerk fittings and a set of NM adjustable End Links. MSRP of the three items is $557.00. I'll let it all go for $300 OBO (no lo-ball offers please). Not interested in breaking up the set. Parts are located between Raleigh and Durham, NC at G3 Automotive. Chris at G3 would be happy to install it for you too. No shipping.

http://www.nm-eng.com/345/0/0/3119/n...-bar-22mm.html

http://www.nm-eng.com/345/0/0/3290/n...ting-22mm.html

http://www.nm-eng.com/345/0/0/3125/n...-link-kit.html