I hope everyone here is aware about how people increase the sound of their CG125 and CD70 by adding that small muffler or whatever you call it under the main exhaust. The other day I saw a 150cc sports bike by Suzuki in my town having similar modified exhaust, so the bike made a lot of noise and to be accurate its sound was more like those of liter bikes and my 250 would seem dumb while that 150 was running. My question is, how much does this modification affect the performance and fuel average of the bike. Even though I have no plans of such mod to my FZR but just for the sake of info, how would it affect the performance of Exup exhaust?
The question is for serious replies only please avoid off topic replies. Thanks