Wow. Well first I don't know if he actually said they are a waste or not.
I would agree that the other mods will make a big difference. And the stock front bar on the GT isn't bad, but the rear bars are either too small or too big IMHO. And aftermarket bars, like mine, offer you adjustment at both ends so you can tune the balance of the car to your liking around how you drive and the other parts on your car.
Can you go too big on a bar? Sure, mostly on the rear. In fact there is a HUGE rear bar that is being sold and it's WAY, WAY, WAY too much. You have to be careful of generalizations.
I use a 34.9mm front with a .250" wall, and a 25mm rear with a .156" wall. Stock on a Brembo GT is 34.6 4.4mm wall, and a solid 24mm rear. I wanted the front a little stiffer, the rear a little *SOFTER*, but with adjustment to find tune balance. That's a long way from his assertion that all bars are bad because they don't, what was it? "have deflection".
A few other things. Camber bolts... the slip. Never would I recommend them over a camber plate. HPS pads are NOT in anyway TRACK pads. And if you want the car to work as best it can then you want Koni Sports over STR.T's. I sell a lot of STR.T's and they aren't bad, but they aren't Sports.
Strano Performance Parts
7x SCCA Solo National Champion