hey guys just wondering if i should put a performance chip in my stock 2011 es and if so what would be your idea of the best chip to get

 

no chips, they are all scams.

your options are

a piggyback ecu which involves splicing into the ecu harness
an ecu reflash which tweaks A/F ratios. it can be reflashed back to stock. less likely to void warranty

 

is tuning worth it if you have changed the intake and full exhaust?

 

Get a tune (ECU reflash).

I remember seeing a thread somewhere that a guy opened up one of those "chips" and it was just a resistor. So there's actually no chip/reprogram/computer stuff in them, it just manipulates the data that that the ECU is receiving or sending (I don't know which one).

 

yes. after adding bolt ons, a tune helps "dial in" the ecu to get the most out of the mods

 

^for the most part. Getting a tune for just I.H.E. wont really help you too much, if any at all. UNLESS, you get like a 3" exhuast going or something. Save your money for that tune after you've done serious work, i.e. turbo, PnP, etc....