I've seen a couple of people using 2 K&N filters instead of the proflow or stock replacement filter. How do you get them to mount to the carb boots on the air filter side?

I realize that a tube going between them will work, I was wondering what size and which K&N filters to use?

Has anyone noticed a performance difference just by going to this set up?

 

I bought a set up from hy tech atv go to hy-tech-atv.com and click new products and you'll see the set up they got comes with jets outerwears,bracket,etc.Bolts to brackets form factory air box.

 

look here for picture

I went to Low's and got plastic 2.5" shop vac adaptor tubes and mounted them to the carb tubes and then mounted the K&N's to the adaptors with hose clamps. I used a piece of aluminum as a support mount and zip tied the adaptors to keep them from sagging. I also fabed a heat shield.

I then upgraded to aluminum tubes from a metal distributor.

you will need to jet up.

 

here is another picture

you can get the filters (#5720 I think) and outerwears from Trinity

Ward660 has a similar setup.

 

BlueLeader,
Thanks for the info. You set up looks great. How would you describe the performance? I am curious to see if you lost any bottom end.

Thanks,

 

I did the filter setup when I did the 686. But it runs strong.