So here's a pro tip for y'all if you aren't too bright like me. Never trust the two bolts holding the hurt shifters linkage to the main assembly. You might THINK it comes tight from the factory, always remove the bolts, put loctite, and use a hex key and tighten back up... why? My shifter...
I'm not sure if I made this thread a LONG time ago or not so if I did I'm sorry, but basically my hydroboost hisses when I engage it, and I mean HISSES, my idle falls a bit too, also it'll engage the second stage of the brake if that makes sense, like it'll click into the second stage it won't...