Hey guys, I'm looking at a pair of Arrow slip-ons for a 2000 M900ie.  If I only change the slip-ons, without doing any airbox mods or aftermarket air filter, do I need to do anything with the ECU or run a Power Commander or anything like that?
Thanks!
			
			
			
				Nope.
Not bringing in enough extra air to warrant it. 
Lots of good info HERE (http://www.ducatimonsterforum.org/index.php?topic=48432.0).
			
			
			
				I put an arrow full system (both mid-pipes and cans - not just slip-ons) on my old S2R 800 without a problem at all. No reflashing the ECU or PC solution required. Ran great and the sound and look was MUCH better than stock! 
From what I remember of previous discussions on this issue - the only time you will need a new map is if you upgrade both ends of the "air pump" (aka, engine), the air filter AND the exhaust.  This gets rid of both bottle-necks in the air flow, and will very likely require a remapping of the ECU.  That's my interpretation based on memory - so hopefully others can confirm/correct me on this one.
			
			
			
				Awesome.
Thanks for the quick replies, now I know what mod is next!
			
			
			
				Quote from: Episteme on May 09, 2011, 07:56:52 AM
From what I remember of previous discussions on this issue - the only time you will need a new map is if you upgrade both ends of the "air pump" (aka, engine), the air filter AND the exhaust.  This gets rid of both bottle-necks in the air flow, and will very likely require a remapping of the ECU.  That's my interpretation based on memory - so hopefully others can confirm/correct me on this one.
Pretty much. 
Uncorking the exhaust is fine as long as it's still breathing in through a straw. 
Open up the intake and you'll need to do something to increase fueling or risk running dangerously lean.