Does anyone know the specifications on the s4 cams vs. the rs4 cams on the B5? lift and duration??? i cant find any info anywhere. Is it worth spending $500 on the rs4 intake cams? I just took the car off the road for winter and im planning on doing the timing belt n stuff, thought it would be a good time to thow in the cams and get the intake ported/polished. any benefit to doing this on stock heads/ ko3's??? anyone have any insight?

 

anyone?