Can anyone please tell me or educate me as to why didn't GM put the Trail Boss or AT4 rectangular exhaust tips on our ZR2 Silverado's ??? I think our trucks would have looked a lot more elegant. We are paying over 70k for a truck and I think that's the least they should have done. Yes, I know the rear bumper would have to be different with the cutouts for the tips but so what. What do Y'all think ?