they do two versions 165 and 195 each is available for OFAC or OFAB management.

The 165 is fairly plug and play though its always advisable to get it tuned up at the same time.

Where as the 195 will require the bigger beige injectors and an unrated fuel pump ive been told, then a tune up to make sure its all working together as the fuelling will be out i would expect.

Other than that they are just a standard map flashed onto them yeah