I just bought a Uni Air Filter for my Grizzly 450......everyone keeps telling me they are better filters then stock. I wont have to re jet right?

 

If your airbox and exhaust are stock you shouldn't have to re jet. I like UNI filters just keep it clean.

 

completely stock airbox and exhaust.

 

Yeah but keep in mind you're not going to get the full advantage of the filter unless you re-jet.

 

why should i go threw the hassle of re jetting to get 1/8th of a HP gain?

 

<div class="FTQUOTE"><begin quote>Originally posted by: Mack450

why should i go threw the hassle of re jetting to get 1/8th of a HP gain?</end quote></div>


The question is:

Why did you spend the money on a Uni air filter when the stock one does a pretty darn good job?

 

because my buddies were telling me they filter better then stock.

 

<div class="FTQUOTE"><begin quote>Originally posted by: Mack450 because my buddies were telling me they filter better then stock.</end quote></div>

IMHO...
The Uni. K&N, Twin-Air etc filters are good and beneficial for this particular quad only if you are modifying the engine, IE Jet-Kit, Cam, aftermarket exhaust etc..

A simple air filter change / jet-kit isn't going to provide much engine improvement... as you said
<div class="FTQUOTE"><begin quote>Originally posted by: Mack450 why should i go threw the hassle of re jetting to get 1/8th of a HP gain?</end quote></div>


The stock Yamaha style foam filter does a good job of keeping things filtered... it is the same open cell foam filter style as Uni / Twin-Air.

I change my oil every 500 miles (I am a freak.. I know they say every 1500 miles.. but oil is cheap - well relative to getting engine work done..) on my machine.. and it really isn't that dirty... not black that is for sure.... then again.. I don't ride in real dusty areas either... I have 940 miles on it now.. and due for a oil change very soon..

 

I ride in very dusty conditions so filtering is big for me.

 

<div class="FTQUOTE"><begin quote>Originally posted by: Mack450 I ride in very dusty conditions so filtering is big for me.</end quote></div>

So does the Uni-Filter completely replace the Stock metal cage / foam filer?

Also if you ride in real dusty areas - you might want to keep a spare filter