I have two 05 coupes, SRT and a NA, want to mod both, got a SRT TB and sent it to MAXBORE and he punched it out to 78mm, I will put it in the SRT and use the stock one for the NA. Have the CAI for both and the SRT has the bigger chiller and isolation valves.
The MAXBORE guy does a nice job.
Just one added suggestion? Replace both of the 'O' rings when installing them. Too many have had air (vacuum) leakage when using the old 'compressed' ones. I used petroleum jelly to hold mine in place while assembling it, and never had a problem with it slipping out of the 'slot' or leaking air. Just a FYI.
.