Triple X
Extreme
What is best on 2003 RX1, dual K&N's filters or a modified airbox (maybe like the one that Ulmer makes) Thats for any help.
krauss2005
Extreme
i had both and hands down the air box mod is the way to go....with the open filters when i would get in loose powder snow would get under the hood and get on the filters and get wet and run like crap ....i noticed no power differance in either of the two
Triple X
Extreme
krauss2005 said:
Thank you for your opinion, out of 75 views you were the only one to answer.
I also have had the two installed and I agree that the modified air box is the better way to go. I encountered the same problems with the filters in loose snow causing the prefilters to ice up and the sled run like crap. I also never noticed any power difference. The only difference is one iced up the other did not and the airbox is quieter. You can buy a modified air box or you can do your own. I have done my own and it works great for what I do which is lots of open fields.
Fourcam281
Expert
I modified my airbox but have yet to run it like that. Don't pay anyone do it yourself it's really easy. Search the poster above me he has a good write up on it.
I don't know about the rest of the guy's but another thing to think about is the noise. I have modded air boxes and run K&N and both give a great deal of engine noise. No longer do you have just the drone in the rear at certain rpms the engine noise almost doubles in front of you.
I ride both mine that is modded and the wife's which is stock and there is not much difference at all with noise between the two. The filters yes I noticed it much louder running the filters.
Mine came with the K&N's on it so i can't compare power wise. I don't ride powder so i haven 't had that problem. The noise difference is like turning the top of a aircleaner over on the older cars and trucks. When you give it some you can hear it. I can hear the diff between my buddies stock one and mine.
YAMMERHAULER
Extreme
Air Box
What cv Spring are most people using with the modded air box. I know the jets should be 170's.
What cv Spring are most people using with the modded air box. I know the jets should be 170's.
Fourcam281
Expert
I didn't change mine...
Triple X
Extreme
Re: Air Box
I think alot are using the Silver spring.
YAMMERHAULER said:
I think alot are using the Silver spring.
I didnt change mine either there is no hesitation at all.
After talking to sled dog he said 170 mains and 20 pilots do not call yamaha for these they are stupid expensive ($6 each main and $16 each pilot ) call royal distributing they are a lot cheaper but they are closed on weekends I will be calling them on Monday id give you a link but I don't know how to do that on here maybe someone else can help with that . Thanks sled dog for info (the dealer prices are yamaha by me )
Fourcam281
Expert
I only changed my mains. Do I need to do the pilots too?
