Hi Greg

We'll see what Rick's speed is like in his 2003 C5 once I custom tune the PCM for engine and that A4 tranny
as seen it was not allowing him to go beyond about 5,800 RPMs
Once I tune it up should be a lot better in that Florida heat

Also in talking with Rick I think the small vacuum hose for the HVAC doors is either off the intake by the MAP sensor
or hose is broken as that loss of MAP will confuse the PCM and cost him performance
Rick was tasked to check that out and email with with OBD-II scanner so I can analyze and see if leak is fixed and
then use testrun data for me to do the tuning so he is ready for Homestead track day early next month

Hope your 2021 C8 Z51 HTC gets to you soon to haul ass on the track with !