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      03-06-2012, 02:56 PM   #2
DriveHard
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Drives: X1 and R58 JCW
Join Date: Aug 2010
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Ill bite.

there are dozens and dozens of threads on the sprint / BMS debate and how they compare ....

Ill give you the cliff note version.

AA tune is a tune!!! and is reported to do great things overall, BUT you have a DME that has been modified, and you may encounter warranty issues if you go in for service etc etc etc

on the other hand, BMS is a piggy back, undetectable ( once removed) ... it offers throttle pedal re-map and some slight timing and fueling changes at the top end ( in my experience) I have the BMS and am very very happy for what it cost and what it does... and i track my car.

The sprint booster only does throttle remap..

for the money the BMS cant be beat.....but if you are into real racing etc etc etc or dont care about warranty the AA tune is the way to go.
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