I bought it for my 07 Tacoma and it was easy to install. It gave the truck a nice sound when passing. It said to give 10 more HP at 4900 rpm's, but Im never that high into my rpm's.After having it on my truck for a week and reading more about it on some tacoma forums I decided to return it. Paying $200 for sound was just a little to much for me. So if you are buying it to have little rumble when you pass then its great, but dont buy it for anything other than sound.A little side note, while reading about my truck on Toyota forums technically Toyota's come stock with a Cold Air Intake system, you just need to replace the paper filter with a cloth one.