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      11-19-2010, 02:20 AM   #4
550 dinan s2 flyer
brandonwal79's Avatar

Drives: 2011 550i Dinan S2 premium 2
Join Date: Feb 2009
Location: San Diego CA

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550i Dinan increase

I'm interested in anyone that has experience with the dinan stage 1 on the 2011 550i. The car comes with 400 hp and 450 ft and dinan claims an increase to 496 hp and 573 ft torque.

So that is 24% increase in HP and 27% in torque. I dont' know the 0-60 on the 550 i think they say 4.8 sec at BMW, but they generally are quite conservative with their numbers... Also looking for the 1/4 mile times on the non-tuned and tuned 550i 2011.