Air Cleaner Advice

[Jack Klarich]

http://www.harley-davidson.com/en_US/Media/downloads/Racing/US_SE12_Full.pdf?&bmLocale=en_US Have you looked in the Parts Book yet?

 

[aklim]

http://www.harley-davidson.com/en_US/Media/downloads/Racing/US_SE12_Full.pdf?&bmLocale=en_US Have you looked in the Parts Book yet?

Yes, hence my confusion. I have the 2 options. Stage 1 or Heavy Breather. Which one is better or does it not matter? How does the best of the 2 compare with the Hurricane by NRHS?