There’s a way to see if it’s got a tune loaded…it’s on the forums..I’d bet that would be the biggest thing next to getting under the hood…but if it were me..jack it up take a look at the rear motor mount and while you’re there see what’s going on with your down pipe…if they’re stock I’d bet the intake and exhaust might be all she’s got…but if I saw the downpipe and rmm are modded I’d start getting excited not that the intake and exhaust aren’t already exciting enough but there might be more goodies in there.