clueless??? you'll get that from them,, any company that takes great pipes like the old 650 w/cats and builds a set claiming''trail smokin torque'' at an rpm 300 LOWER than stockers and lose hp is just that, clueless!
a buddy of mine had a set on his sled afew years back. They sounded nice gave what felt like a performance gain.... pulled nice and hard with a clutch kit in it. I cant recall if he had a chip or note though .. I wil lask next time i see him that is if he remebers ...
I ran BM twins on my 93 550 carb, mild porting, shaved heads, advanced timing, dial adjust and some clutching, that sled would outrun stock 700's. Anyhow I'll see if I can find some of my old clutching and jetting notes.
It should be slightly leaner with the twins but if that is the only engine mod you should be safe.
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