Pre-oiled with Twin Air BIO Foam Filter Oil using state of the art filter oiling machines, which provide ultimate consistency in pore coverage
Replacement backfire resistant air filters for Twin Air Airbox Kits (sold separately)
Fused, dual layer backfire resistant offroad air filter for four stroke Yamaha YZ/WR dirt bikes
Coarse, open pore outer foam catches airborne dirt, grime and sand before they can damage your engine
Free flowing, backfire resistant foam laminated to the inside of the air filter eliminates restrictive, stock backfire screen
Fine pore inner foam designed for 4-stroke engines acts as a second filter to trap the smallest particles, while ensuring maximum air passage
Thick, flat foam greaseless sealing ring ensures maximum contact with your airbox, while acting as a breathable gasket for increased air passage
Fused inner and outer elements prevent dirt and grime from being lodged between layers
Washable/reusable design for enhanced cost effectiveness, reusing a Twin Air foam air filter 40-50 times is common
Exclusively formulated adhesive withstands repeated cleanings, even with harsh solvents or gasoline
Slightly smaller than stock filters to increase air space around the filter and improve circulation
High quality construction, assembled by hand and inspected for a perfect fit
Evenly sized and distributed cell pores for even coating of air filter oil
Green BIO Liquid Power air filter oil micro-coats the foam cell walls and prevents dirt, dust, mud and even water from entering your carburetor
Boost your vehicle's performance with the first biodegradable air filter oil that works in all riding conditions, with the added convenience of wash down the drain cleaning
Packaged in a resealable bag for added convenience
What shipping options are available?
Online orders will be shipped through FedEx, USPS, OnTrac, or other reputable shipping services based on what we determine to be the best option. We (do not) ship to P.O. boxes. Please contact us if you are interested in an expedited shipping on your order.
Do you ship outside of the USA?
No, unfortunately at this time we only ship to the lower 48 states in the USA.Do you ship to Alaska and Hawaii?
We (do not) ship to Alaska and Hawaii.
What could cause a shipping delay?
Shipping delay can occur when the wrong address or zip code is submitted for the shipping address. If the shipping company can not deliver the package we will contact you via phone or email.
During the holiday season shipping delivery may vary.
How do I return an item?
Please fill our our RMA form. If you have an account, go to the order to fill out the form. If you don't it is under policies. Items can be returned within 45 days after purchase. Items must be in new/unused condition with all of the original packaging. Customers who make a mistake with their order are responsible for return shipping costs. Discounted return labels can be purchased. If we have made a mistake, please email with pictures of what you received including the part number and the year, make and model of your machine if applicableIs there a cost on returns?
If an item needs to be returned the shipping fees are the customer's responsibility.
Amount of refund will be based on the purchase price of your product.