Slip-ons...

 

Neither, Go with a Two Bros.

 

Why two bros?

 

I have a trs carbon yosh pipe. I cut about 6 inches off of it, and it sounds great !!!

 

Why two bros?, Because thats what he's got on his bike. he'll tell you it's the best looking ans sounding pipe out there but it's not. You can't go wrong with Akraprovic, Arrow, D&D (loud), Devil, FMF, Hindle, Jardine, Leo Vince, M4, Micron, Scorpion, Two Brothers or Yoshimura. You'll find that they will all have a slight different sound but you should be pleased with whichever one you get, If not you can always put in on ebay and get yourself another..
I bought the Yoshimura TRC because I liked the shape of the pipe (tri-oval) and the chroming with a red emblem that would go good with my silver/red f4i. As for the sound of it, I'm am really pleased with it evan though I had never heard what it sounded like untill I had it installed on my bike.

 

it all boils down to what you want to listen to (or your neighbors) while you're riding around. dont go w/ a slip-on based on power b/c there is barely any gained. if you're between the two you mentioned (just curious, why THOSE two?) then try and see if anyone in your area has either of those.....im SURE someone has a yoshi pipe, its a very popular pipe.

i chose a two bros. because i read up on it and found that it had a tone that i prefered over the yoshi, and scorpion that i ALMOST ordered. im 110% pleased w/ what i have on my bike. the yoshi, scorpion, leo vince, jardine, yada yada all have a lower tone. still a DEEP tone, but a low tone and dont really make ya jump until very high rpms. D&D has more of a high pitched scream to it, and EVERYONE will know you're riding when you take'er through the gears!!! the Two Bros. has a very very deep tone. it sounds excellent at low or high rpms and keeps a deep sound to it. my g/f has a yoshi on her bike and in my personal OPINION i dont care for it, its fairly quite until you hit HIGH rpms. i dont want to wake the dead, but i want a deeeeeep sound and i'd like to make some noise, lol....so i went w/ a two bros.

so...anywho, my vote went to the leo vince slip-on. tired of all the yoshi pipes and its too quiet for my taste.

(i have not heard an akropovic so i cannot give my opinion on that one)

im giving my 2 cents. purchase a pipe based off what YOU THINK sounds good.

 

exactly neither is the right answer and yes 22222222222 brothers is the other right answer

 

I did my research on Two Bros. and theres a big difference when you choose your pipe.

http://www.sportrider.com/tech/146_0...ips/index.html

Here is a link to let you hear what some of the pipes sound like.
www.twobros.com also has a good audio clip of their pipe. Its mostly personal choice, but the Two Bros, has a deeper tone to it. Sounds like tuned power and not a bad muffler.

"Choose, but choose wisely"