i bought them for my b16 but sold it and now i have a single cam.i have ITR outers and Port flow inners with retainers and they have around 4000 miles on them and if you are a real honda guy you would know this valvetrain set with good cams can rev out around 9000-10000 grand with no prob.by the way if you on top of your honda game you should know what they are worth brand new.so please throw me a decent offer