The last time I was concerned with performance modifications was 12 years ago, and the car I was modifying was a 1985 300zx. So I'm a bit behind on the latest in aftermarket performance. I am getting a 2014 cts 2.0 AWD in a few days and I have been looking at these performance tunes. 60rwhp and 60lbs torque by plugging in a computer for 5 minutes, all for a few hundred bucks??? I need to know, what is the catch, what is the down side here. And of course, the big question, why wouldn't manufacturers just do this out of the factory to increase their advertised performance numbers? Items I'm particularly concerned about are- will it, in anyway affect the durability of the car, and if so, how? It seems like, by now, there should be a consensus on this topic, even if it is not based on this particular make and model. Other concerns- how will it impact the factory warranty, should I try to hide it from my servicing dealership, gas mileage impact?? So please, no wishy washy answers, if you don't really know just pay attention to the thread. I'm looking for answers from someone that really know the ins and outs of what these performance tunes effects actually are..
Thanks in advance!!
Thanks in advance!!