Hello everyone,
My 2009 STS-V has a clunky 2-1 downshift and sometimes a 3-2 as well. When coming to a quick stop, it downshifts at 6MPH and feels like it pulls the engine down with it, makes the shift and idles back to normal. I changed the MPH downshift table to 3MPH but it didn't smooth it out. The car has been tuned to 420WHP/460WTQ not by me, but has always done it stock. I have the current tune file attahced. I am very new to tuning, and if it is a relatively easy thing to change, I'll give it a shot. I'm looking to see if I can smooth it out. Thanks in advance!
2009 Cadillac STS-V Tune.hpt