Does the SLR motorsports performance chip really work? If so does any body have dyno results

I wouldn't waste my money

is there a chip that you recommend or are they all junk

you can't chip this ECU, you need a piggyback like a Unichip, Utec both good for NA but if you go FI then you might want to look for more of a stand alone like Fcon, Haltech.....