I had 295/30/19 R888's on the rear of my 13 GT on Brembo wheels.. Yes they Bulged a little but not to bad.. And they hooked real good in my opinion.. And yes I know 295's are to wide for 9" wheels but I still had a set of the R888's brand new sitting in my garage from when I had my 09 CTSV.. So I used them... Never had a problem with them either..
Bill
2013 mustang. Whipple supercharger and mods. 734 hp 665 toque. 3.31 gears. 6mt. Could not hold it to the ground until, j&m extreme lower control arms, bmr relocation brackets set to first hole and a j&m adjustable pan hard bar to center the rear end. And Finally, 315 30 20 toyo r888s on stagered 10.5 rear niche 20 rims. I can FINALLY hold the power to the road. Stick out about 1/2 a inch after centering. I'll try to upload picture. I LOVE these tires!!!