captainscott60
Senior Member
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Are they different in terms off overall diameter? Asides from the surface area, like length etc. Just curious.OK little update to this thread… was able to get the PRL drop in filter for comparison and here are the pictures… not too much of a difference but it looks like the PRL filter has a slight advantage in surface area
I will also be doing a comparison between the Spoon ( Sprint Filter ) as well in the coming weeks.
Now as far as having over a month on the K&N I can say it did help with gas mileage on average ( when I wasn’t driving like an asshole ) before the drop in K&N filter I averaged 27.1 mpg with a 60/40 split in driving with 3 fill ups , after the filter I was able to manage 29.4mpg with 3 fill ups. Now let’s see if there is any change with the PRL filter ( doubt it .. but we will see )
The difference is that the PRL has about a 1/8” width difference which is actually a slight radius on one side… the actual filter area is the same.. but the thickness on the PRL is about 1/8” thicker .. so I think that’s where they might have the advantage in filter surface area.Are they different in terms off overall diameter? Asides from the surface area, like length etc. Just curious.
Thank you for the update. Yes I agree in the noise volume the k and n filter provides. I'm sure performance figures are negligible across the board for a drop in filter. How ever I am curious to see how the spoon sounds and preforms.The difference is that the PRL has about a 1/8” width difference which is actually a slight radius on one side… the actual filter area is the same.. but the thickness on the PRL is about 1/8” thicker .. so I think that’s where they might have the advantage in filter surface area.
I will have the Sprint / Spoon filter next week so I’ll be doing the comparison between all these filters.
So far my impressions with the PRL filter feel the same as the K&N but it seems more muted vice the K&N… not sure why but it’s actually quieter.. with the PRL Filter.
I purchased the Sprint filter for the FL5 from MADNESS Autoworks they are the only authorized Sprint in the United States. Also you are correct the filter sizes are differentWhere did you find the Sprint filter? I see it for FK8 only, and I’ve been told FK8’s dimensions are slightly different from FL5 filters.