|
You are not going to get the full potential of a ported TB or CAI, without a tune. Those mods do not require a tune and should not cause a CEL.
Tunes generally do not cause an emission problem. With a ported TB, CAI, I would expect an increase in HP. But it certainly isn't going to give you drastic power.
The negative issues associated to a tune is the almost certain loss of your powertrain warranty from GM. So my advise to anyone is if you can afford the loss of your powertrain "if you have one", than tuning is a positive. However, finding that guy or shop that knows what they are doing when it comes to tuning....is a must for any car owner thinking about it. Do you due diligence, do your research, ask other owners, check reviews. Don't be afraid to ask questions of that guy or shop! If they cant/wont be upfront and open......walk away, no better yet, run away!
Because someone who doesn't know what they are doing, can do more harm than good!
GM, like most car manufacturer's, I suspect tune cars on the conservative side, for two reasons,
They don't want to deal with a large number of warranty issues and
government regulations on mileage, emissions, etc.
Is there hidden HP in these cars which can be accessed with the addition of simple mods and a tune. IMHO, absolutely!
I am sure you will get a fair share of opinions on this matter by others!
|