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Hmm......i assume that since my 865cc speedmaster has a different cam and capacity that these pipes may not be the way to go then, eh?



Iknowjohnny,

I have the 865cc SM with TBike pipes installed from day one. I am unable to determine the extra "oomph" the bike gets from them (like I said, I never ran it stock) but this bike flies when compared to the stock 790cc "loaner" I was riding for a few months last year until my bike arrived.
It is true that the TBike exhausts don't give you the same boost as with the 790cc (unfortunately I was told this by the TBike guys only after I ordered them - whereas up until then they were telling me they were fine on the 865cc).
I was also told by the TBike guys (in January) that they were looking at a mod for the 865cc or possibly a new pipe altogether.
Either way this baby flies and the sound is great.
Sorry not much usable info ... just my own experience.

Bedouin. Blessed are those eyes that have seen more roads than any man! (Homer).