Yeah, it's pricey for what it is. The CMP one is $279 AUD, which is about $193 USD, versus $260 USD for the BimmerWorld item.
it says $1521 usd for me lol...thats why i said its pricy..... if it was 279 aud, i mightve went with this instead
either way, this upgrade is well worth it especially when combined with spherial joint rear arms
but stock traction control hates it a lot since everything is directly transfered to the road or the chassis now that there is less rubber absorbing the forces...i noticed my traction control kicking in more often on bumpy surfaces especially when WOT