I called the "tech" line at Samson on behalf of one of my customers today.He has switched out his Samson strait pipes for a set of thier new Fishtail baffled pipes and it was running rough when he got done with it.Bike is running very lean.. Knowing that the bike needed to be re-jetted I called Samson for thier "expert" advice(I use the term "expert" very loosely.) I got some clown by the name of Robert telling me that I just need to take it to a bike shop that deals in jetting issues.When I go on to tell him that I AM A BIKE SHOP and need his technical expertise he goes into this rant and rave about how all bike shops know exactly how to jet carbs for aftermarket tubes blah blah blah. When I pressed him for details he finally admitted that he did not know anything about jetting a carb.This guy is a tech????? What a poor representation for Samson. Anyways I made a call to DYNOJET who I have been dealing with for years.Those guys are top notch and are always very professional to deal with. I have installed a bunch of Vance and Hines products in the past.In many cases they wind up referring me to DYNOJET if they can't walk me though the process. Bottom line,,,,avoid Samson Exhaust unless you want to be on your own for technical support.