i know theres a lot of chips out there and ive heard of one that just flashes your computer through the obd-2 port...for the car that i have, which is going to be the better buy...and some pros and cons of having a chip in ur car...thx

 

I dont know of any pros of the chip other than the performance and i dont know of any cons to teh flash. I think the advantage to having it flashed is if u havea warranty. What flash would it be? GIAC flashloader? I think its cool because u have a extra 40 hp (70 on the s4) if u push a button.