[scanboy]

Originally Posted by e90pilot

N51 was created for lower emissions so not only is the combustion chamber different, I think the entire exhaust is different. Your car already makes use of the 3-stage intake manifold. Putting a 330 tune wouldn't work because your engine is physically different. It's not really that your car can't handle the higher compression. It's just not something you can tune into the software. You would need new pistons to get a higher compression. But you can still get more power with a simple tune. Perhaps an exhaust might free up more power too.

Ah, I see, thanks.