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      04-07-2013, 08:17 PM   #18
binky
Enlisted Member
 
Drives: 2013 BMW M3
Join Date: Nov 2012
Location: Portland, OR

Posts: 40
iTrader: (0)

The M3 motor is great to begin with. I installed the test pipes and BPM tune and it gave the car a bit more grunt. It loves to scream! These are not turbocharged cars where you get big increases from a tune and bigger downpipe. Drive the car and try not to get so worked up over a comparison.
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