Yes a new CAI and tune will have a return for you investment for HP, the gains that are published by the tuner are UP TOO, don’t plan on getting more then 25 percent of the published value, it is a canned tune, as far as exhaust, unless you go with headers and high flow cats, axel backs will give you a minuet amount of HP gain, the best return from axel backs is sound.
But I still stand on a soap box and say this, the best mod you can do to these cars are sticky wide tires for traction… this might not fit you if you think spinning the tires is quicker, wrong… spinning the tires on launch is nothing more then wasted HP and torque, HP and torque that gets you there quicker and that is the whole point of making modifications to factory configuration of this car IMO.
I don't speak often but when I do, I don't have clue what I am talking about. I just repeat things that I once heard and do not repeat them correctly... My doctor told me it was an ID 10 T problem and it was incurable.
So when I reply to a post or add to a thread I just find the words elsewhere and copy and paste.