Time for a little reality check here. Cams alone will not give you a 20hp gain. Not even to the flywheel. Gains such as those are reserved for cars that have forced induction. It is very difficult to unlock hp from an NA car. Look at Honda, Nissan, Ford Focus for example, you're lucky to see a 7-10 hp gain on some of those on a mild cam profile. Some of the hard core bump sticks (cams) can give you 16-20 hp, but your car will idle like shi** and you will lose your daily drivability. Don't get me wrong, I'd love to see some one throw on the header and cams, but I hope they realize they will be driving a different car, it will no longer sound or drive the same. Just my .02 cents