And I'm not cutting down other cai kits and other tuning companies! Just giving some knowledge I have learned over the year. The problem with a mail order "canned tuned" is they are tuned to a specific car and specific conditions and every car is different and all condition are different...like buying a tune from sunny Florida and using it on a different car in canada where it's -30 Celsius is not safe! So just because the tune is safe on the tuners company isnt running lean or rich on there car doesnt meen it's going to be the same on your car! All cars are different just like some make 367hp and some make 381 stock.