Would a change to the new GT3 nose and side skirt (without a butt or fin mod) adversely impact my aerodynamics?

 

not at speeds under 110 mph - over that you will feel light in the rear

 

Actually did the test with a customer on the Florida Turnpike from Pompano to Boca. At 88 mph the back end felt very loose, then tried a quick lane change around 105 mph to 110 mph the car felt like the back end was going to into an oversteer. We came back to the shop customer ordered the Porsche rear Carrera wing, when it came in we painted it, installed it and did the test again. The car felt like it was on a rail even at hi speed lane change, we were only able to get up to 163mph because of traffic.

 

What does the GT3 nose do that causes that much more air flow to get around and under the rear end so that it suddenly gets so much lighter than stock at higher speeds?

 

GT3 nose, side skirts and rear GT trims here with stock pop up tail and no problems at high speeds.

 

GT3 Nose and side skirts, no problem with stock rear wing. I have a GT3 wing in my basement, but haven't had the money to get it painted and installed yet.