Pipework Diameter: 3.5″ (88.9mm) > 3″ (76.2mm)
Cobra Sport performance exhausts enhance the sound, looks and quality of your vehicle giving you the ultimate driving experience. Our sports exhausts range is fully guaranteed to give you assurance of our quality.
This Focus ST Mk4 performance exhaust is made in 3.5″/88.9mm reducing to 3″/76.2mm bore pipework and fits from the turbo to the centre section.
The sports cat exhaust option will enable you to pass a UK MOT emissions test or police road side checks.
The de-cat sports exhaust is sold for motorsport and off road use only and will NOT be able to pass a UK MOT emissions test or police road side checks.
All relevant fittings and gaskets are supplied for fitment.
Fitment will require engine tuning at time of fitment to cancel the EML light.
Please note: fitment to the standard GPF section is not recommended as one of the GPF sensors found on the O/E downpipe is not included on this part and will need to be blanked off when fitting impacting on GPF functionality.
Cobra Sport Exhausts provide the performance exhaust solutions for the Mk4 Focus STs raced by the MB Motorsport accelerated by Blue Square and Motorbase Performance teams in the 2021 Kwik Fit British Touring Car Championship. This technical partnership allows us to test our products on track at the highest level of British Motorsport. The experience gained from the competitive track environment is fed back into all of our road going performance exhaust systems.