2007 Yamaha Stratoliner S "better horsepower torque" Questions

...horsepower due to the OEM exhuast having a exhaust port that opens and closes depending on back pressure. He has indicated that my only option is slip on's. Can you help me understand and let me know ...

...better exhaust system or a bigger bike. Now, if you really want a road burner, you got the basic bike to start with. Order the 1200 cc cylinders and pistons, a set of Buell heads for the 1200, a set ...

...horsepower at 11,000 rpm and the max torque is 45 ft-lb at 8,500 rpm. The motorcycle's compression ratio is11.3:1 while the bore by stroke ratio is 2.5 by 1.9 inches. The engine is liquid cooled. The ...