Thread: N54 vs N55
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      04-15-2014, 05:26 PM   #22
First Lieutenant

Drives: 2011 E92 335i, 2009 E92 328i
Join Date: Jul 2011
Location: North VA

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2011 BMW 335i  [4.20]
Originally Posted by Johnny Boost View Post
Ya Terry's f32 barely broke 400whp and that was FBO with his unreleased solenoid fix. I lurk on all the e9x and f3x forums and I've yet to see what you are talking about so I guess I agree to disagree
I hear ya, but there is a difference. Terry's 435 dynoed somewhere around 414 (link), while most e9X FBO's are around the 390 range it seems. There seems to be a ~20-25 hp difference at the wheels which has been chalked off to the larger 4" outlet on the F30's turbo, but someone correct me if I'm wrong.

I don't mean to get off topic though. OP, the N55 is definitely a great platform! Plenty of power, and hopefully there will be some more aftermarket turbo options soon for those of us hungry for more .