All parts › BMW M4 CSL › Exhaust system › Resonator
Resonator
Part of Exhaust system · about $480 to replace
What it is
Centre resonator under the driveshaft.
What it does
Cancels drone at cruising rpm.
How it fails
Rarely fails; internal baffle rattle when old.
| Material | Stainless steel |
|---|---|
| Spec | 4 l |
| 1,800 rpm tuned |