Confused..It's a 2016, 91 stratified tune and e30 tune used here and there. Catless DP, injen intake and straight piped. Okay so here's my very strange issue! When I pump my brakes until the pedal gets hard a cloud of white smoke comes out the exhaust. After around 40 seconds it stops smoking. There is no smoke at idle prior to pumping or driving and wot. The smoke clears completely. Also smoke is white but does not smell like coolant, more like some odd burnt smell. 15k miles. I have a small evap leak code that comes up every now and then. But when this occurs no cel.