I have a 2007 yfz 450. i want an new air filter. i was looking at kn and gytr. whats a better air filter? and do i need an adapter plate for both of these?

 

K&N makes one that fits in the stock location without an adaptor.

 

K&N is better for sand, foam everywhere else(this is strictly my opinion, I'm sure others will chime in to the contrary.) I have been running the No-Toil products this year, and really like them so far, plus you use the stock filter cage if you don't want to install any adapters.

 

its all preferance but K&N is the better overall filter IMO they make filters for everything...you can get a k&N drop-in which is an OEM replacement basically and theres the K&N clamp on filter which requires you to have the billet adapter bolted onto your airbox already, i would use either K&N or a UNI my personal preferance is a clamp-on K&N and an outerwear and ur good to go, just go to autozone or advanced to buy one and you dont have to pay shipping and its easier to make sure you get the right one.

 

does uni need an adaptor?

 

depends on what u get, you can either get an OEM replacement UNI or a clamp-on style.

 

get a fci intake system. they are the best on the market with there custom tube not just a adaptor.

 

i just got my yfz jetted, and if i get the fci do i need to change the jetting?

 

If you put the fci intake on you will have to rejet. I have a uni and its been pretty good so far. I would like an fci intake but dont have the money.