My vt is straight piped with a gutted stock downpipe and it always smokes from the tailpipe when sitting still.. Wondering if that's because of oil blow back or something wrong with the motor. I have two catch cans that I'm planing on installing and seafoaming soon.. Wondering if that would help.. Or is it just crying for a tune?? Which I was planning on having by now but been waiting for my intercooler for almost two months and just now hearing the DV bov is being redesigned so I'm looking past June before I can get it and install it. That's if it comes out on time smh..