Hey guys I'm thinking of either putting a burger tune in my M4 convert or possibly spending a little more to do a total ECU flash with downpipes. Not sure what HP the burger tune does but the guys that will do my the ECU flash and downpipes boost a 550 hp total. It's also convenient cause I can let these guys do all the work. Does anyone know where in NY a burger tune can be done. What do you guys recommend ?