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Old 12-21-2012, 03:02 PM   #49
tock172
Beachtown Bill Collector
 
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Join Date: Jan 2011
Location: San Diego
Posts: 2,906
My Ride: '99 Techno Violet M3
In stock form, I would take the N55 over the N54. It's more refined, and I found that the torque comes in sooner. If I had plans to modify the car/engine, I would take the N54. More tuning potential, more aftermarket support. I like the N20. I think it's a great engine with lots of potential. Would be cool in a 128i.
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1999 Techno Violet Metallic BMW M3
2005 Audi B6 S4 quattro 6MT
2004 BMW 330i
1986 BMW 535i

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