|
I personally dont think it matters if you do it b4 or after break in. But, and this is a big but; Its gonna be a lot harder to do a proper break in after you have put a bunch of upgraded parts on the car, because you arent gonna be able to keep your foot out of the throttle. If you get a tune per any upgrade , it may be a little more harsh during break in, but nothing that I would think could hurt the vehicle.
|