With the CFM high performance air box you will no longer have to worry about the less than perfect seal on the stock filter and air box. Absolutely no modifications are required to install this air box. It simply bolts in place in about 20 minutes. Air box does not include the filter. Uses UNI part number UP-6300AST and K&N part number RB-0910.We build these as we get paid for them. This allows us to sell the highest quality products at the lowest possible price. It is rare, but occasionally there can be a delay. Be patient, we always work hard to make sure you get what you paid for in a reasonable amount of time. Most customers agree, the high quality and low price is worth the wait. The item "Suzuki Kawasaki Arctic Cat Airbox Air Box Intake DVX400 LTZ400 KFX400 Z400 CFM" is in sale since Wednesday, April 17, 2019. This item is in the category "eBay Motors\Parts & Accessories\ATV, Side-by-Side & UTV Parts & Accessories\Other". The seller is "cfm-performance-atv" and is located in Mayville, Michigan. This item can be shipped worldwide.