I just bought this carb off a member here on KR. I just got the K&N filter yesterday 11-25-09 and it has never been ran. I tuned the carbs without the filter installed only because I didn't have one. The crossover intake does not come with carbs. I ran this carb on my stock internal kfx700 with all bolt-ons. Ran very strong all the way through. $235 shipped for the carb and K&N filter add 3% when using paypal.