if i remember correctly, the reason the roadster people were probably asking about whether the intakes would fit, is because the roadsters supposedly have of some sort of extra weight under the front passenger-side bumper area that the coupes dont have.
i remember people with roadsters having some problems with the installation of certain cai's because the tubes were hitting the weights. since yours is a tube that remains in the engine bay, there should be no problem.
my info may be a bit wrong, but it was something very similar to that.