I used a set of Tien S-Tech on my Rs. They drop a GSR or LS about 2.5in on front and 1.7in on back. They're a little less on the R. They look good on the stock 15's. Would require a camber kit in the back at least. The rear tires (Nitto 205/50's) wore well under a year on the inside. The front is still like new. Just a suggestion.