135i n55 mid pipe

[BMW135I]

Just put it on the 1M, R4900 for everything including the 3 new gaskets.

Sound is much better and no drone!

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Part Numbers:

01 Center muffler x1 18307599743
02 Gasket x2 18307553603
11 Gasket ring x1 18117553130

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Which dealership did you do it? Doing this would be fine on a normal n54 with the performance exhaust,?

Did you get slightly better performance at all?

 

[Brett6ll]

Just put it on the 1M, R4900 for everything including the 3 new gaskets.

Sound is much better and no drone!

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Part Numbers:

01 Center muffler x1 18307599743
02 Gasket x2 18307553603
11 Gasket ring x1 18117553130

---

Which dealership did you do it? Doing this would be fine on a normal n54 with the performance exhaust,?

Did you get slightly better performance at all?

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If you have the performance exhaust this fitting the n55 mid pipe will add a resonator, so this would be of no benefit.
The n54 has additional cats in the mid pipe and this removes them but retains the resonator which the performance exhaust does not have. There are tons of exhaust videos on 1addicts and the 1M guys seem to love this mod as it removes some of the drone.