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      04-28-2012, 10:05 PM   #11
Droptopp
2015 X5 50i, 2013 550ix, Alpha 9 GTR, 2015 Denali
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Drives: X5 / 550ix / GTR / Denali
Join Date: Apr 2012
Location: NY

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Stage II

I had stage II installed when I took delivery with zero miles. Engineering at Dinan said it wouldn't be an issue. I believe it was released on March 19.

I'm happy with it.

Scott from Dinan sent me the following info:

Peak HP
501 HP @ 5000 RPM
Peak Torque
580 FT-LBS @ 3500 RPM
Stage 2 software is $3499.00

Stage 2 only makes a small increase in terms of peak horsepower and torque over Stage 1. The big difference is the amount of boost we are able to apply on the Stage 2 version in first and second gears.* The Stage 2 software will provide substantially faster acceleration from a dead stop and lower rpm.* Stage 1 is great, but Stage 2 is noticeably faster.
Appreciate 0