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Good morning,
i'm just purchased a BMW 135i M, so i'd like to do these tuning options:
- Quaife LSD - Limited Slip Differential
- Supersprint exhaust with final and central exhaust
- K&N air filter
- Chip tuning
Also, with these configuration which is the best chip tuning?
Which is the more power and reliable one (perhaps AC Schnitzer or Hartge?)
Thanks a lot
Alex
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