I bought a bike that was completely stock so I assumed I would need a new air filter, bought a K&N race filter (6007R) but after opening it up today it already has a K&N standard filter (6007) … anyone have any idea how much difference there would be between the two?
Price wise it’s about £15 but the official site said the race filter is not intended for highways - trying to decide if I return it and invest the £60 in the next mod or swap it out for the race version.
The K&N air filter can of worms previously debated on every motorcycle, car and petrol head website. The educated conclusion being don’t bother because fact is you will get better engine protection for less cost with a throw away Hiflo, Halfords, Bosch, Mann, Fram, Crossland or whatever impregnated paper air filter.
Although if you’re considering a proper full on track specification that is a whole different ball game requiring re-mapping, greater maintenance schedules, frequent engine re-builds etc.
So the idea is to track her occasionally when the new season opens up but mostly road use and although I am fitting a dynojet setup and plans to swap out the can when I have the funds, I agree with me_groovy probably best to send it back and invest in the next mod … although Wise makes a fair point XD
A Hiflofiltro air filter for my Fazer FZ6 costs £18.99 on eBay
A K&N costs £54.45
So I could buy 2.86 HiFlo ones before I recoup the cost of the K&N, that’s not including the cost of the cleaning solution and air filter oil and time taken to clean and re oil it.
But if you want to clean/change the air filter more offer then you’ll probably save more money than the single use equivalent.
Why not an obvious 5th dyno run with no air filter?
The K&N filter looked to be straight out of the box and not oiled which would allow a greater air flow vs a properly oiled mesh filter.
Note mesh filters such as K&N, other mesh filters are available, require oiling to protect the engine from the induction of dust and other airborne particles. The dust and airborne particles cling to the oil wetted mesh, its how they work hence the need to clean and re-oil mesh filters on a regular basis. Worth a mention the downside of oiling mesh filters is applying just the right amount of oil, too little and harmful airborne particles enter the engine, too much and there’s risk of causing damage to the Inlet sensors.
i use pipercross filters & they say you can do either oil or no oil
but if you dont oil you need to clean it more often,
i have two one in the bike & one cleaned
i can swap them in 15mins & i soak the old one in parafin for a while & clean them ready for the next swap