Ford Focus ST Estate (Mk4) GPF-Back Performance Exhaust Tips:TP105-CF (Carbon Fibre) This is backed up by

This is backed up by our sound testing where the Cobra Sport systems were quieter at idle (-1db) but during the stationary test at 4

000rpm test: 98

Example of the Cobra Sport BMW M135i Exhaust (GPF Back with Box Delete)

2dB) at 4000RPM

Example of Focus RS sports exhaust (non-resonated cat back exhaust and de-cat pipe)

Ford Focus ST Estate (Mk4) GPF-Back Performance Exhaust Tips:TP105-CF (Carbon Fibre) This is backed up byCobra 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. These Ford Focus Mk4 ST Estate performance exhausts are made in 3" 76. 2mm pipework and fit from the Gasoline Particulate Filter section backwards (GPF back) these exhausts replace the centre and rear sections. All relevant fittings and