[kazoorider]

I was wanting to know if anyone has torque cones on your exhaust? and if so why? What are the advantages?

 

[T-man]

I don't have them but the theory is, I believe, that you can shift the torque curve in the low RPM band with some back pressure. Others may need to comment on this. I messed around with some adjustable baffles I made once to see if I could tell any difference in both torque and sound quality, but I did only by the seat-of-the-pants method, not dyno.

 

[bikeaholic]

re

T is correct - from what i've seen cones are no big power gainer
i've some bikes at the strip using them but under 3k rpm they were useless
had a flat spot until the motor caught up.i've learned that it is a real trick
to play both ends of the spectrum with exhaust as far as low end tq vs high
end hp,some where a compromise has to be made,i have yet to find the best of both worlds.i believe that pipe diameter and length on larger motors plays a large role in exhaust tuning not whether or what kind of baffles you are using