Quote:
Originally Posted by christians g20
The G20 330i is a B46 2.0 L Twin turbocharged 4 cylinder engine. The 320i is a 2.0 TwinScroll 4 cylinder. The twin scroll turbo is a single turbo powered from pairs of cylinders in an alternating sequence from two exhaust down tubes.
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That’s not the case - the 320i is a detuned version of the 330i’s which is a twin-scroll. I believe that the 320i version also has weaker pistons and internals. Or so I was told by a tuner in Holland. Regardless, imagine the 320i would have no issue running stock 330 like power.