2nd gear chirp, downshifting issue
So it seems like every video I watch of a 0-60 run, people spin a little off the take off and then chirp second. I bought my car used, and now has 82k miles on it. The previous owner said he had it tuned at VMS, but I contacted VMS and they had no paperwork stating my car had ever been in there. It does have a CAI, but is stock other then the supposed tune and the cold air (not sure why someone would lie about the tune, and tell me he had it on their dyno?). It does have brand new tires on it, but It has a hard time spinning off the bat, and definitely does not chirp in second. Also, If im crusing at 40 or 50 and hammer it, it doesnt really down shift like it should. It more or less just starts to take off slowly until it hits the power band. Sometimes it downshifts and takes off, and others it wont. Any one have any experience with this, or any recommendations or suggestions on what could be wrong, if anything?