Air box lid?

[logan_450R]

I have a 07 YFZ450 with a slip-on HMF k&n w/outwear and dnyo jets and if i take off the lid will i notice the power gain or not?

[Dill]

if you jet it correctly after removing the lid, yes.

[honda6490]

Is it worth taking it off and buying a UNI filter and Outerwear, (moneys kinda tight but I want power haha). Is the gain really that significant after you rejet obiously.

[Dill]

the air inlet in the YFZ airbox is a restriction, it is definitely worth it in my opinion. If you want to get the airflow but not lose the protection of a lid, I've run the EHS lids with good results.

[m.h.s.c.#527]

no lid and a uni is my sggestion or just keep stock noticed little diff wth my filter

[honda6490]

I noticed a huge difference had to go up to 170 main and a 45 pilot (a little rich pilot jet) but the thing rips and sounds better now too.

[250r4life]

Originally posted by logan_450R
I have a 07 YFZ450 with a slip-on HMF k&n w/outwear and dnyo jets and if i take off the lid will i notice the power gain or not?

yes... but with a question like that, i highly doubt the truth of your sig :devil:

[REDRIDDER]

Originally posted by 250r4life
yes... but with a question like that, i highly doubt the truth of your sig :devil: hahahahahaha i get it now lol

[Flyin400]

Why dont you just take it off and try it your sellf?