High flow filters on average allows more dirt particles into the engine..
I guess if you only plan on keeping your bike until the next model...that is fine, but long term...will end up equaling a rebuild. Racers rebuild all the time so it do not matter. They can run a window screen lol.
There will be gains. If it truly flows as well as their race filter then there is no way it doesn't show gains after tuning.
Problem with high flow filters is dyno tuning for ramair.
It's not surprising. I loved the Sprint filter. I'm just hoping the WSBK filter flows better than the P08.. if the new Sprint filter flows even better but filters as good as the p08 then I'll know I've made a mistake but but got a WSBK filter for 220 and I haven't seen any actual proof of the new Sprint filter doing what it claims yet. I suppose I could have waited but who cares. Maybe I'll switch when it's time to clean and oil this filter.. I hate having to do thatWhen I switched from sprint P16 to MWR Wsbk filter I noticed the AFR drop so the P16 does have more flow than the MWR, the fine sand in the air box is the worry though.
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The p08 filter didn't leave the airbox dirty. What I'm saying is I hope the new Sprint filter is the same and not like the p16if it flows better but you see the airbox dirty, then is a no go Victor... a little hp does not make up for dirty going in the engine in my book...