2011 163 with silbers new kit. 300kms stock and 500 kms boosted. i got sick of going threw belts and tps sensors and lower and lower compression each ride. so i pulled the turbo kit off and this is what i found. the orange o-rings in the new airbox that seal onto the throttle bodies were both warn out causing a boost leak (explains why i couldnt get over 10 pounds of boost). also i found a thick layer of engine and belt grime in my intake tube and boost tube and alot of black looking gunk entering my turbo. a pre filter is a must in my opinion. also a bunch of my lines were rubbing in tight sopts causing the lines to ALMOST wear threw. i installed the kit myself so probably my fault but there are not a lot of options with such a tight fit. the boost control lines that come pre installed were almost warn threw as well. i also never could get the oil cap to stop leaking. i also had a crack in the aluminum where the only oil tank bolt mounts to the bulk head. i really suggest having a detailed look at all your lines before they rub threw. i only put on 500 kms on this kit and was very supprised on how much rubbing there was. i hope this helps. not bashing justins kit, just trying to make it better. TTT