Originally Posted by Silverado12
You def need a tune. Your bike may actually run better w/stock exhaust, but you won't get the "sound". The mfgs spend a lot of time on exhaust on modern bikes. That being said, I did the same thing as you on my 2007 H-D Dyna, and it was running 15 something to 1 on the dyno w/o the tune. I got a dyno tune and a Power Commander 5 which got me an extra 15hp and torque.
Yeah I'm saving up for the power commander 5, didn't realize how much they cost and I would like a dyno tune as well I feel a little uneasy about slapping some premade tune on the bike that is supposed to be meant for my exhaust. Yeah I know it would likely run better with the stock exhaust, but the stock exhaust made it sound like a scooter and to be honest i'm perfectly fine with this bike being a little slower until I get used to it, compared to my SV650 this thing is dumb fast. But i'd rather not burn up my engine either lol.
And thanks for the explanation mk378, I wont lug it.