I HERD IS NOT GOOD FOR THE ENG TO BE WITHOUT A PIPE---I WANT TO STUNT WITH OUT MY EXAUST (JUST A SLIP ON) DOES THIS DO ANYTHING TO THE MOTOR??

 

No backpreasure can be an issue, i'll let someone with more techinical expertise explain....

 

Ive done it on my 929, lost a TON of low end power. and i mean a ton. Night & day putting the pipe back on.

sounded neato though.

 

did it hurt the bike?

 

My can is duct taped on. I can tell the tape is coming off because it runs shitty way before it gets loud. If you have the header on, i wouldnt worry about damaging the engine.

 

If you take the can off and run it for along time you'll burn the valves up no back pressure on the motor. It needs a little back pressure to run right. Sounds cool as ****, wont really hurt it unless u run a long time. Wouldn't recommend it but if you don't care then it really doesn't matter. your going to notice some power loss, I ran my 900rr for about a hour with it off because I was draggin sub frame and it pulled the rivets out of the can. Got it on tape have to post it sometime. Did it right after this pic for my avatar was taken.