Gates belts with part numbers according to pulley size I gathered from contacting kraftwerks a while back.
Im currently running the k060725 on my 120mm pulley
120mm K060725
110mm K060721
105mm K060716
great stuff to use >I use it ever couple thousand miles. I'm a firm believer in take care of the car. and the car will take care of you from point A to point B. track your MPGS with out using it and then track MPGS again when using this fuel system cleaner you will notice a slight gain in MPGS...
I have a kraftwerks supercharger running the 120mm on it with over 40k miles on it running strong still. a big issue with the rotrex units going bad deals with the 110mm pulley and over spinning it and bouncing it of the rev limiter constantly is belt driven so everytime time you hit your rev...
DC cams would not work with Z7 head due yo no Vtec on exhaust cam. these cams are strictly for other k24's with vtec on both intake and exhaust side. You guys really want cams for the z7 motor on the 9gen only option is doing a head swap with costs a few k'$ which for the price you can go BOOST...
haven't seen that but. have you cked the seal on them or make sure you have no cracks in them any where and possibly try using clear silicone around the edges where the lights come together once the condensation disappears from inside of them to prevent future condensation from getting inside ...
k20 valve will not work with out modification. the k24 side is wider on the cam gear side and k20 will have to shaved down for proper fitment and clearing of internals.
for a 14-15 SI there is a lot more work required in order to accomplish this when using 13 hybrid taillights . you have to take in consideration the trunk button release and the alarm system speaker(or what ever its called) when alarm goes off and car Is locked that beeps located inside the rear...