Reply to letter #31486/29879 T2-T4 Grill openings
#31935 from Andrew Aquilante · Rule change · TB 22-03 (2022-03 Fastrack)
In T2-T4, GCR Section 9.1.9.2.D.8.a.8., change as follows:
"For the sole purpose of engine radiator cooling, it is permitted to remove the outermost non-metallic webbed false grill
openings that are closed in mesh style factory grill openings. Maximum allowable increase in grill opening area is 16 squareinches. The modified grill opening mesh shape and contour must be retained as delivered from the manufacturer. This allowance
does not permit modification to dedicated brake-only or intercooler-only grill openings. Note - It is the competitor’sresponsibility to be able to verify that 16 or fewer square inches have been removed."