Must have if getting a CAI
Prior to getting this cold air intake kit & performance exhaust. The truck still seemed a bit sluggish. After adding this, made a huge difference! hit the gas & she goes! Don't notice the whistle hardly at all. Easy install, but watch the video 1st...the instructions were a little vague in illustrating proper direction/flow. Truly a must have to get the full potential from a cold air kit!
I have had it installed for just over a week now and I definitely can tell the improved throttle response. I haven't seen any improved MPG. As for horsepower, I have this installed with the aFe cold air intake and overall I feel more horsepower, but not sure which item really provided the additional horsepower. I purchased because I wanted more power for towing and better MPG. The better MPG is yet to be realized, but I would still recommend to others given the relatively low cost and increased horsepower.