skaling said:I have an APC kit, and I have notice the extra power. Its also a lot louder than stock and it looks much better!! Honestly..I don't think any kit/filter is better, It all depends on what you want. They are all going to do the same thing for you(8-10 HP), so its more of a brand prefernece or what looks the best. Also, it doesn't matter what kit you start with you can always change the cone filter to a different brand!! Here is a pic of my kit.