Peugeot 107 Resonator

We usually hear it before we see it: a raspier, louder exhaust, a rattle under the car over bumps, and sometimes a mid-range drone. Visually, look for rust perforation along the seams and pinholes where road salt and condensation have eaten through.

Pricing varies by model and whether it's a bolt-in or welded section. Request a free quote through our form and we'll match a used or aftermarket resonator plus fitting cost for your specific Peugeot rather than quoting a generic figure.

It sits midway along the exhaust system, between the catalytic converter and the rear muffler, usually under the floor near the back of the cabin. On 208, 308 and 3008 models it's the small canister ahead of the larger rear silencer.

Short-term, yes — a blown resonator mostly affects sound, not drivability. But a rusted-through resonator often means the rest of the system is tired too, and loose sections can drop onto the road. Book it in before a full exhaust failure.

A muffler is the main silencer, a larger box designed to reduce overall loudness. The resonator is a smaller tuned chamber that cancels specific frequencies to clean up the drone. Peugeots typically have both, working in series rather than as alternatives.