Nope there is one part number. There is another word for the curved one: "broken".

You could take that one out and heat with hot air gun and straighten if it's thermoplastic. Also pull apart the rusty ball joint and clean it out. It's almost 100% chance the ball joint rusted and stopped moving causing the bar to get bent.

I recently did rear suspention work and both of mine had completely rusted ball joints which I refurbished by pulling apart and spinning in a drill over wire brush then packing with grease.

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2011 E70 • N55 (me)
2012 E70 • N63 (wife)