Quote:
Originally Posted by jpalamar
Don't want to spend $400 just to tune a stock bike with a muffler lol. I've read that they do lean out too much, but I can't see how an ECU can't compensate for the little difference in air flow.
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the ecu isn't as smart as a cars .. they call them electronic carb's
not many sensors .. not to mention they make the bike run lean there anyway .. so even if it could correct for a/f ratio it still going to run lean
and the power commander is under 300$ and revtech has something like it for 170$ kneedraggers.com
the biggest gains you get are while using a powercommander on a stock bike .. pipes don't add much hp if any at all .. you get the power from a proper a/f ratio
bikes generally run stupid lean low rpms and stupid rich high rpms .. the aftermarket exhaust will lean it out a bit wich sucks even more at low rpm but gets you closer to a good a/f ratio at higher rpms
either man up and spend the small amount of money or live with the choppy throttle check ebay