I talked to a tech rep at C&L. He had some interesting news. Test car 1 did great on the Dyno with the CAI system, showed great results about 15-18 HP increase on Dyno without being programmed. He was baffled with test car 2 and 3. The result weren't that great. He said they didn't except the CAI and give the same results. The car seemed to have different Fuel/Air ratios with the factory settiings. He said they should have been the same and didn't know why they weren't. He thinks the system will need to include a programmer (more money, about double, $699). Before they put on the CAI they ran the car on the Dyno and got one car 14:1 fuel/air and the other car 12:1. I didn't write the ratios down so they aren't completely accurate but I did get the idea. The cars were different from the factory. It seems if this is so any CAI system would need to have add a programmer on. C&L is going to continue to test and the goal is to design a CAI that will bolt on and not require a programmer. The good news is and their CAI was installed and was programmed is show 24 HP at the wheels. Take this with a grain of salt. I don't know much about this just wanted to pass on and get other input.