I have a 2000 S4 and just changed out the air filter with a new K&N filter. I was just curious to how much hp is gained?

Also I was curious about the Darintake. I looked at a write up on how to make one and was just wondering what hp gaines you get?

 

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um not enough to notice it really just gets you more air is bout it your not gonna be like holy Sh** my cars so much faster now that i have darintake