• We are no longer supporting TapaTalk as a mobile app for our sites. The TapaTalk App has many issues with speed on our server as well as security holes that leave us vulnerable to attacks and spammers.

K&N Air filter question

voglit said:
Don't want to step on anyones toes.... But... K-n has a tappered filter (2570 ?) That works very nice.
K-n. # sn-2570 , breathers un-125
 

This is off of Ulmer's Web Site...
Improve low end & midrange 5-6 hp!
2-3 HP gain on top end!

I think these numbers are without any type of fuel programer??? Maybe someone who knows for sure (Allen U.) will reply?
 
My sled ran like garbage without the PC5. It was popping bad enough the sled was almost unrideable. Added the PC5 and it was a whole new animal.
 
Blu2U2 said:
This is off of Ulmer's Web Site...
Improve low end & midrange 5-6 hp!
2-3 HP gain on top end!

I think these numbers are without any type of fuel programer??? Maybe someone who knows for sure (Allen U.) will reply?

With programmer...
 
Nikolai said:
My sled ran like garbage without the PC5. It was popping bad enough the sled was almost unrideable. Added the PC5 and it was a whole new animal.
. What RPM was the popping occuring? Not sure if that is what I'm hearing also. And was it under a load when it occurred or when you were in and out of the throttle at a steady pace?
 
Any time I was off the throttle and got back on it. It would continuously pop, it sounded horrible. The PC5 made a night and day difference. My sled did have the lean pop before the filter kit from my exhaust, the filters just made it a lot worse. A K&N kit by itself might be fine.
 
bottlerocket said:
Blu2U2 said:
This is off of Ulmer's Web Site...
Improve low end & midrange 5-6 hp!
2-3 HP gain on top end!

I think these numbers are without any type of fuel programer??? Maybe someone who knows for sure (Allen U.) will reply?

With programmer...

Are you certain of this???
 
Allowing more air in with same total amount of fuel?.
Has anyone ever heard of Hoyle's or Bernoulli's principle?
 
I ran the filters last year and got a Small popping Noise just after engagement,i think there is a lean spot right there..but the Sled worked ok otherwise.I also have a Buddy who runs filters and a slip-on with no Programmer and his runs great.
I now have a PCV and ignition modual and it does run better for sure..but i do think some sleds don't need the Programmer for just Filters.
 
Nikolai Would you consider it worth it all in all?
 


Back
Top