05-04-12, 03:35 PM
(05-04-12, 12:36 PM)akula link Wrote:I am just about to replace my stock Airfilter with a K&N filter which promises to increase horsepower by up to 4%. Can anyone tell me or does anyone know if this claim is true, will there be any improvement in horse power or is this impossible on a standard setup?
"up to 4%" includes 0.