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I had the Maddad in combination with my Akra exhaust and AR Design downpipes, but unfortunately that combo created a loot of drone and vibrations, so I ended up switching back to my N54 mid pipes and that took away all the drone and noise problems.
Now after a few years I'm considering switching up to the N55 mid pipes.
Has anyone used the N55 mid pipes with an Akrapovic exhaust and aftermarket downpipes on the 1M?
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Diego RdS - Lima, Perú
2011 /// 1M Coupe - BSM
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