I have used them and they are awesome. I placed an order on a Sunday and realized I forgot a $2 o-ring. Not wanting to pay shipping for a small part, I sent an email asking them to add it. I received a response a short time later (remember, on a Sunday afternoon 3 time zones away). They added the part, no problem. Very, very happy customer!

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Kirk
Las Vegas
2016 X5 40e Mineral White/Black Dakota Leather, ZLL, ZCW, ZDA, ZDB, ZPP, multi contour seats, rear side window shades, HK stereo
2011 E90M3, 6-speed manual