It helps with the nothcy throttle response at slow speed, low rpm that comes stock ('14 mag wheel bonneville). If you're curious, stick a marble or something similar in the hose that's big enough to not be ingested into the engine. I used some AA battery blanks I had sitting around to try it out while I waited for a resistor dummy to come in the mail.Allegedly reduces discoloration of the headers, not true in most cases. Gets the excess plumbing out of the way of accessing the spark plugs. Reduces popping on deceleration.
No difference in performance.
I did it to get it out of the way of the spark plugs. My headers are "discolored" anyway, adds to the character of the bike. I don't care about the popping.
So aside from the ai delete what else would you recommend?Well IMO heat is the second biggest engine destroyer...lack of lubricant is tops, obviously.
That reason alone is why I opened my system up as soon as I could. Intake and exhaust. It runs richer, cooler and more efficient.
With regards to the SAIS, removing it reduces the combustion in the exhaust ports and pipes....significantly lowering the exhaust temperature. Result is cooler pipes, cooler engine....happy bike.
Just my .02
My 2015 air cooled T100 runs perfect in stock trim, but I'm @ 7000 ft above sea level and the air is rare up here.So aside from the ai delete what else would you recommend?