Go with the MGW shifter. I have a Hurst on my Camaro, but I like my friend's MGW better - feels tighter and shorter as well. As far as Cold air intakes, I'm hearing Cold Air Inductions are best, but it's def not cheap at around $400. The best sounding exhaust in my opinion is a Borla S-Type, which is very popular on here. Not that it matters on here, but this is also the best sounding exhaust on a mustang as well
You just can't go wrong with Borla, no matter what you drive.