Hi everyone, have a question, or more of an opinion from who ever reads it and has a moment, than looking into something specifically and possible wrong with my car. long story short, i have a used 2011 v6, had a few mods: street magnaflow catbacks, airaid intake, and some weird ass tune that was making my car stutter. Tips on my magnaflow melted away so i replaced it with competition magnaflow, i put in there 3.73 gears, replaced whole suspension with eibach street pro kit, replaced the rear lower control arms with BMR ones, installed BBK TB, spacer (the one the whistles ), and Steeda CAI and had Matt from Steeda tune it (recently revise it to have a more sensitive throttle response as mine was sluggish, but when i tried Pedal Commander it felt jumpy, so i had him do what this little trinket for $300 does, just for free since i got a SCT X4 tuner with that CAI and free unlimited tunes for my car). The fastest i got my car to run 0-60 was 5.6s and it was winter, on an empty, very decent and flat highway. some 6m later i cant get it under 6s and in warm weather. the thing is i am reading that this car with performance package was able to do 5.1s (motor trend), and see some people with less mods saying they have the same time as me or even faster. (i measured my time with OBDII connected device, not with a video and than counted seconds. i also disabled advancetrac as well. i can get it to spin (its automatic) but not much. would you think that anything is wrong here, and should i be having more performance from it. thinking of doing some data logs with the tuner, but than someone with a lot of experience review it. it has 98k miles on it and i also recently put new spark plugs in there.