Well i was also thinking this, im still mid build with my car and have a brand new set of greens and a stg3 chip, but my best mate wants to do a deal with a set of blues, my car has a t34, just got a 500 cooler and c/r is 7-2-1, along with the usual bits and bobs,

Would i need another chip to run the blues or can my car be set up on the chip i have?

or just stick to the greens and get it set up with them