Join Date: Jan 2009
Location: Mendocino, CA, USA
I have a K&N and go back and forth whether I use it or not. The bike is a tad more responsive in some areas of the power curve, but then again, it is also more sensitive to throttle management because it seems to be running leaner. I prefer stock filter, and it is easier to remove and replace, but I live a ways from my dealer, so it is sometimes more convenient to clean and reinstall the K&N. Have not had any issues with stuff downstream. I have the Rhinewest cam gear and chip kit. The K&N tends to negate some of the benefits of the Rhinewest chip, though I have not experienced backfiring like some guys have with this combination. But Pirate's Lair and Rhinewest both recommend the stock filter as I understand. Again, I prefer the stock air filter, especially for smoother throttle control in the twisties. So, it is not a real world performance enhancement. A new chip is a way better investment for that, way better than an aftermarket exhaust, too.
'00 K1200RS >135,000 mi, '09 K1300S sold @ 22,232 mi
'93 K1100RS traded up @ 78,000 mi, '85 K100RS sold @44,000 mi, Kawi 650 track bike - sold