Originally Posted by brandonwal79
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.
Got mine flashed with Stage 1 a couple of weeks ago. Significant power gains (massive torque now - even with DCT engaged I'm losing traction at 1st 3 shift points).
I'd take Dinan's power quotes with a grain of salt .... at best they're likely BHP/torque numbers. Still ..... cheap power (20% off till end of 2010 .... cost me $2400 + tax).