I got my car tuned from GST motorsports (AWESOME TUNE SHOP) on a Mustang dyno at 91 octane pump gas (I got 217 WHP with 208 WTQ with only TBE, up-pipe, AP Stage 2, and crank pulley); they are great guys (Mike did the tune and he really knows his stuff). I was wondering if you guys know what type of gains I would expect by installing an intake (I have dome some research, but no one really provides me with a consistant answer).

depends on the intake, but i wouldn't expect more than 5-7 whp, if that.

i wouldn't expect more than 5-7 whp, if that.

yup...if that

What would be the HP difference between cold air and ram?

Stay with your stock air box. It's good up to 300awhp. You're not gonna see much gain. Plus you'd have to retune if you would install CAI or SRI...Get a drop-in K&N air filter or other brand...I had a short ram installed and went back to stock air box, also cobb stage 2...