Go With Spectre
As far as I can tell, it does what it's meant to. I put this on before I put on my Spectre cold air intake to test it and noticed an immediate throttle difference, definitely added some power. And it hasn't messed with my mass air flow sensor. Don't buy this to save gas though, I haven't noticed much of a difference. Wasn't too hard to install either, just make sure you have a socket set and a pair of vice grips at least and you'll be fine.
Great product for the money
It arrived on time. It looked great. It was easy enough to put on but the directions could be a little clearer. I was getting 15.5 miles to the gallon on my truck before I put it on, now I'm getting 17.8. If you're looking for your engine to sound a little meaner this will help out. It's definitely worth giving a try and buying, great price great product for the money.