OPF-equipped chassisFitment Notes
OPF Compliance Guide
What modern emissions regulations actually require of particulate filters — and how to choose an exhaust path that stays road-legal.
VCTR Editorial10 min read
OPF-equipped chassisEuropean performance cars from late-2018 onward carry a factory OPF as part of the regional emissions compliance package. Removing the filter exposes the car — and the workshop that fitted the system — to a defect notice in most markets that mandate the OPF.
Legal path
OPF-back systems leave the particulate filter and primary cat in place. Fully compliant, fully audit-safe.
Track-only
Catless and OPF-delete systems are legal for closed-circuit use only. Not for road registration in markets that mandate the OPF.
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