T/A, According to H&R's website, the DRA only comes in 40mm-60mm. Less than 40mm, you have to use the DR, which requires the longer bolts. For the X5 application, you'll have to use the DRM in the 25mm-30mm spacer (the DR or DRA are not available in those two sizes). I inquired them about this about a couple of years ago and H&R confirmed that info (unless they had made design changes/improvements in the last couple of years). I didn't want to use the DR or DRM because the longer bolt would mean that I can't use wheel locks. The DRA seems perfect, because you get to use the OEM bolts and accessories. Please keep us informed as I'm still looking for some 25mm for the rear. Livermore Performance (http://www.livermoreperformance.com/...pacers.html#HR) seems legit and their price is very reasonable. They were very nice and helpful in answering alot of my questions the last time I was browsing.