What are your goals for the car? If it's mid 10's or better, you'll be looking for a blower or turbos, anyway. Of course that $5600 is probably for a tuner kit and you'll be spending quite a bit more, to finish the install.
Now that it's warmer, I've been pushing the car harder and I started to suspect that this great sounding exhaust wasn't so stock. One less mod to do. :like:
With it being 60 today, I finally got to push it a bit in the twisties. This car is definitely more planted than my EB ever was. I was able to take corners 10-20mph more than my former car, especially in long winding curves where I could really put the power down. Makes me interested in how much...
I had the Ford ProCal tune on the 15 EB I used to have and it's not a super aggressive tune. The engine didn't feel leaned out and I never had any issues with it. I can understand being hesitant, though.
I don't really want to do a tune on mine right now, either. The stock CAI isn't terrible and I think I'll just drop in a aFe Magnum Flow filter until I'm ready to do LT headers.
I had a tuned EB for a year and it's a quick car and a fun car, but it didn't "feel" quicker than my GT. Now, you do feel the extra weight in the GT but it doesn't take flooring it to quickly access the torque that will slam you back against your seat. Hell, I haven't even been able to floor it...