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Better intake, exhaust and ECU flash (plus all the parts that save weight) all equal to better fuel economy.....right? If she's a tree hugger, buy her a razor and try to convince her of the "Green" aspect of modifications.
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Grey Matter:2008 E92 M3:608/425. SG/PS SOLD!
Dark Matter:2015 F80 M3:495/505. SOLD!
Anti Matter :2016 F82 M4 GTS
What next?!? A 2022 M235i GC- I must be getting old
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