How much more hp will it give me on my 2001 audi a4 1.8t if i got a k/n intake system,a boose diverter valve?

I want more power out of my car so i want to know if this is a good start.How much more hp will it give me on my 2001 audi a4 1.8t if i got a k/n intake system,a boose diverter valve?10-25 hp, check on the k/n website, they have dyno charts showing power and torque increases for a specific carHow much more hp will it give me on my 2001 audi a4 1.8t if i got a k/n intake system,a boose diverter valve?Not much. Definitely none from the diverter valve. Maybe one or two from the intake. The stock intake is very efficient and free flowing. The only big difference you'll notice with these is a better sound. If you want power for your audi look at a chip and an exhaust system. Those are the cheaper modifications. If you still want more power your gonna be looking at upgrading the fuel system and the turbo.How much more hp will it give me on my 2001 audi a4 1.8t if i got a k/n intake system,a boose diverter valve?zero-sip-nada- those audi engineers get as much hp out of that tiny engine as can be/that other sewer pipe junk will end up costing gas mileage with no returns/some times it makes them slower/audi is one of the super engineered cars going/beemer is next/of course the company that sell the junk props it up but the disclaimers are in there