This Resonator delete pipe replaces the mid resonator (second silencer after the flex section).
This will be the Round Resonator approx 20" length. Suitable for OEM and MPE exhausts
118i F21 Mod - Resonator Delete pipe
Fitting guide:
Cut the round resonator immediately before/after the welds on each side
Slide the res delete pipe over the existing pipework by approx 50mm per side and clamp into place
As simple as that
please see listing images for reference.