Picked up a 2009 G8 GT in Lincoln Nebraska last year with 6391 miles on it. It has all options including the sun roof, 19" wheels and is painted Pacific Slate Blue color. It was a local car and was owned by a lady in her 70's. Would like to install a cold air intake and get it super tuned for 90+ octane gas. Any suggestions on whats the best option for a CAI and tuning chip? Also any idea on RW HP gains if I do the above changes and leave the fuel management system activated.
Any suggestions would be greatly appreciated.