
The HJS Tuning ECE downpipes with sports catalysts, supplied by Milltek Sport, free up the S55 in non-OPF F80 M3 and F82/F83 M4 models while keeping the car road legal thanks to ECE approval.
Please note: HJS Tuning ECE downpipes are type-approved (ECE) for road use. Keep the ECE paperwork supplied with the part.
Please note: non-OPF/GPF cars only (2014–2018).
Features
- ECE type-approved downpipes and HJS sports catalysts
- Improved exhaust flow and turbo response
Fitment
- BMW M3 / M3 Competition Saloon (F80) – non-OPF, 2014–2018
- BMW M4 / M4 Competition Coupé & Convertible (F82 / F83) – non-OPF, 2014–2018