The coupe and sedan should be the same. The changes from the A4 and A5 are minimal.Is there any dyno info for an 07 6-6 sedan with JUST hfpc+jpipe?? I do plan on a TBS+CAI at a later date.. I've seen the 8th gen achieve +29whp with sri+hfpc(solid) alone.. but what about the 4dr J30a5?? I'm asking here because Google, DA nor V6P didn't help, just in case any one wants to be a smart a$$.