Discussion Starter · #1 ·
I've noticed it many times that when someone changes exhaust that the whats it sound like comes up. I was curious myself reading all the different posts. The past 2 days I changed from a 100% stock 2011 Raven Stryker and added Cobra FI2000 Powrpro, Vance & Hines Twin Slash Staggered exhaust, and Cobra PowrFlo intake. I was curious to see what difference in sound would actually be made. I found a decibel meter app (sound meter lite) and decided to conduct an experiment. I am by no means a scientist and would not consider a free download decible meter app on a phone to be a scientific instrument but I was surprised with the results. The first video clip is with no modifications to the bike at all. The second is after the Powrpro and exhaust were installed but before the intake was on. I did a test after the intake was on but found that the results were no different than the 2nd test. This was filmed inside my garage and I tried to keep conditions the same, door open, position of phone and distance from bike etc. I filmed it using a Toshiba Camileo H30 camcorder and the mic on this is terrible so Its tough to ear-ball the actual sound in the video. In the end Im very satisfied with the sound of the post mod bike and this experiment was just something to do in the process.