I am pleased with this intake. Just as the birth sheet says that comes with it, the power increase is at the higher rpm's. K&N claims that they individually dyno test every intake that they sell. If that's true or not, I don't know. But I do notice the difference on response and power. Of course the sound is awesome too. The install is pretty straight forward. A few tips: You will have to trim about 1 inch off of the rubber seal after you put it into place. The instructions even say so. Don't be afraid to remove the engine mount bolt to mount the heat shield. Your engine will not drop out of the car. Pay attention to the rubber hose that goes to the throttle body because one side is 2/12" which mounts to the throttle body and the other side is 3 1/2" which mounts to the intake tube. In order to allow for final adjustments, do not tighten the intake tube clamps fully until the install is complete. K&N provides machine screws to mount your MAF sensor. Do not try to use your original screws. I almost F'd that one up. In my pictures, you do not see my MAF plugged in. You might have to tweak your heat shield a little once it is mounted in order to get the intake tube to align just right through the heat shield hole. I hat to give the heat shield a little push towards the firewall in order to get the alignment just right. This upgrade is well worth the money. In my pictures you will see gold reflective tape made exactly for the purpose of reducing heat soak on the intake tube and heat shield. I used a thin adhesive foam on the intake tube first, and then covered it with the gold reflective tape. It did drop my IAT temp over all by 3 degrees. Whether this leads to horsepower or not, I don't know. But it looks cool and it can't hurt. K&N does not provide that. I bought it on Amazon.