Doubt you would gain that much power tbh 3/4 bhp is about normal on a n/a car.
I disagree
I think you lot get hung up on PEAK power figures and forget about AVERAGE bhp gains which can be quite a difference
Power is basically proportional to how much air the engine is breathing. Which is defined by the geometry and valve overlap. In cars with variable valve lift and overlap, you can reasonably alter it to change how well the engine breathes at different points along the rev range, and therefore power.
The 2.0 doesn't have any of that, it's fixed geometry and timing. So what exactly is one supposed to 'tune' to gain anything beyond minor alterations in fuelling.
Most N/A tunes involve raising the rev limiter to eek out the extra top end power, and a smoother fuelling map.
