How much horsepower would a K & N Cold Air Intake raise on my 2003 Infiniti G35 Coupe? Please let me know. Thanks.

 

2-3hp, wrong forum section

 

your going to notice more of a sound difference than you will power. the engine is so damn high tune that the small stuff doesnt give you a whole love of power. but yea prolly about 2-3hp like truplay8 said.

 

I had one on my Coupe and found it to be well made and effective, but you'll not realize more than a few hp with it.
You're better off with a Z-tube and either a K&N panel or OEM panel filter.
I just couldn't justify the cost of the K&N Typhoon.
.......just MHO.
C.