Never had any problems with rain on my bike Big Sucker on my Lowrider (carb'd) and the SE on my EG Standard (FI), with a cover similar to Neggy's.&nbsp\\; While it doesn't rain often here in Arizona, when it does it's pretty torrential, and&nbsp\\;I've been caught in the rain on&nbsp\\;both bikes.&nbsp\\; No hesitation&nbsp\\;at all on either.
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Yes when you change air cleaners you almost always should do some sort of remap (PCIII, SERT, etc.) or you could have some problems down the road with the motor.

 

i'm using the stock cover and have been in lots of hard downpours.&nbsp\\; No problems at all.
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You will have to re-map with the change to this high flow AC.

 

I'm on my 2nd Big Sucker. My first had a billet cover (Softail), my new one has the football (flht). I get caught in thunderstorms often, with no problems to report. You need to remap.

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