Quote:
Originally Posted by e90pilot
Your car has the 3-stage intake because it has lower compression. It would have very little power if it didn't. You can probably tune it, but you won't be near 330i territory.
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Why is that? Is it because of the engine itself or exhaust, 2nd cat etc..? Would having a tune similar to 330 actually hurt the N51 engine (not being able to handle the higher compression ratio)?
By "near" I meant just hp at crank.