Hello. I installed a cobra long exhaust on my 2009 1700 Roadstar. I was told that I needed a power commander so I bought a Powercommander 5 and installed it. I was very unhappy with the installation. My gas mileage basically was cut in half. The bike produced alot of black smoke with the tail end of the pipe black. I went for a tour with my cousin. He has a 2004 fuel injected 1450 tour bike. He used 55.00 on the trip, I used 185.00. I even switched the map
to stock mode, made no difference. The bike surged horribly around 80-100 km/hr. After my trip, I pulled the powercommander, hooked back up my O2 sensors and it seems to run good. You would think the whole purpose of the O2 sensor is to pick up if you are running lean, rich or normal and provide the ecu with this info and thus change the ratio for optimal conditions. I also took the ais
out because my bike was farting or popping horrible after I put the cobra exhaust on. I guess time will tell if I fry the pistons or if everything will be ok. I know one thing for sure, I won't be installing that expensive 300.00 power commander again. Anyone want to buy it?