K&N Air filter for my 99 tahoe 5.7L

[Pirfectcircle100]

I still have a ways to go on my current air filter, but want keep the stock air box and put in a rechargeable K&N Air filter. Do they offer a good airflow boost and give better gas mileage?

 

[SunlitComet]

Very little. Get the whole kit which includes new box and ducting and it will rock your world.

 

[bowtiefreak]

I run the whole kit. I like it. I have a Volant too which other than a few little tweaks I like also.

 

[Pirfectcircle100]

I could look into it, i just can't have something that offers a big power boost, due to my motor being old and with 241,059 miles on it. Correct me if i'm wrong but I've heard big power boost's harm old engines.

 

[ezdaar]

a cold air kit is not going to harm your engine.

 

[SunlitComet]

Mine blew a head gasket after installing my kit. It was coincidental tho.

 

[bowtiefreak]

an intake is far from a big power boost. just helps it breath a little better.

 

[ch4d]

oh yea and when you get on it like on the highway you can hear it scream and if you already have exhaust you may have lead foot syndrome.

 

[Tacky]

Unless you run your 240,000 mile engine hard, you will never notice the difference, in power or mileage on a stock 350. Get a filter from WalMart. Nothing against K&N, but it doesent look like it will help you.