Re: 2005 v6 intake and tuner
Shift kits are okay for cars that are on the track 90% of its life, but I wouldn't get one for my dd or mainly street car.
If you really wanted to, you could get a B&M Hammer shifter. It basically allows you to manually shift the car or leave it in drive and let the transmission do the shifting.
Handheld tuners are perfectly fine for tuning your auto transmission. In fact, it's probably the biggest benefit from the tuner if you have an auto.
The guy you know probably has a bad tune...that or he has an extremely aggressive tune that is slamming his car into each gear and that's what is scaring him.
There are tons of people out there with tunes and CAI's on their 05+ cars and are fine. I'd say as long as you get a good tune for your car, you'll be fine.
12 Black GT500 SVT PP l VMP TVS l JLT123 l O/R X l 28x11.50Rx15 M/T Street R's l BMR Suspension l Recaros
03 Sonic Blue 3.8 / 17 Magnetic Fusion Sport 2.7 EB