Lets ride

my 05 c50 has the k&n filter and cobra fuel processor, do you guys drill extra holes in the airbox for the k&N, or leave it stock, and if you do drill it, how many holes, what size, and where. Thanks

DanChamp

about 11 1/2" holes drilled under side of chrome cover

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The one with the most toys wins!!

Lets ride

wow thats alot of holes, can i drill the holes on the back side of the housing, where the factory holes are, so i dont chip the fake chrome cover.

DanChamp

No because you will be sucking unfiltered air in(from the wrong side)
If you examine the way the filter is made the two existing holes really put air at the face of the filter(the face pointing away from the bike)

__________________
The one with the most toys wins!!

Thunderhoof

I put a K&n in my Vol, I didn't drill any holes in the airbox cover and it seems fine.

DanChamp - did you transfer the rubber intake hoses from the original fitler to the K&N or leave those off? I know they need to be modified to fit in the K&N.

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"Thunderhoof"
Vance & Hines jet kit, K&N, modified pipes, switchblade windshield, dual back rests, license plate relo, tank bib, MCE highway bars, Marlin's clock & thermometer, Kury ISO grips, smoked lenses, Saddleman bags, run/turn/brake controller, PIAA headlight, LED turn signals & running lights,Optronics spotlights, de-paired, "de-Huffied" and de-badged! Kruz Drive Club member.

DanChamp

I have a c50 and it doesn't have the hoses so I just installed the filter Now if you didn't re-jet the carbs on your Vol I wouldn't drill the holes either, but to get the full potential of that mod you would need to re-jet and drill the holes to let more air in to get more power

Cheers
Dan

__________________
The one with the most toys wins!!

MoDZuKi

G man suggests drilling the holes to remove the overly restricted intake hole. Just use a step drill and it does not chip the chrome.
11 x 1/2" holes.. I can take a pic of mine if you like but mines and M50
does make a difference!

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It ain't getting what you want..It's wanting what u got!
**I am a victim of Mod- Mania The bike itself was the cheap part!!!!!...**

Lets ride

Actually I decided to leave it as is, just in case I want to put it back to stock, but thanks guys

Fireball027

Ya if you need the template, i can try to put it online... I have it somewhere, as it just came in my GMAN processor and filter package.

Paraquat

Hope this thread's not too old to get that template? My bike came with a stock filter but no hoses and the pair valve was deleted. Doesn't make sense to me... A lot of off the shelf mods but not maximizing their potential.