I replaced the front and rear shifter bushings with Kartboy bushings on my 02 WRX. Great mod and i was very pleased with the results. At this point i am addicted and want to replace more. Next i replaced the pitch stop mount with the "group n" dog bone. Better but i still wanted more. After that i replaced the transmission mount with the "group n" mount. WOW what a difference. and thats how it sits today (kicking myself for not doing the crossmember bushings!!) The only NHV i get is while cruising down the highway ay 65ish RPS at 2500 i get a very faint whine, witch is OK but i don't want much more. So witch crossmember bushings should i put on? Kartboy or whiteline racing who offer a hard and a soft. I don't mind more whine but i don't want to have a ton of NHV.