I have very basic mods in sig below do I need a chip for this setup? Or is stock chip sweet?

 

Anything other than full exhaust and open element, is pushing needing a tune with the right tune you would see at least 20hp with the amount of mods and your car would run so much better. If your not into tuning your best bet is datalogging and sending to tbi chips or if you want to tune yourself you will have abetter tune in the end because you will be able to nit pick your tune just how you want the call is yours , but you will definately benefit from a tune. Good Luck