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mTune zip-up case
Direct replacement
• Crank sprocket machining for keyway
which the Stage 1 calibration has been fully optimised for
Each set is supplied pre-gapped by mountune to optimise the setting and allow for easier end-user installation
Cat Back Exhaust [Mk7 Fiesta ST] Pistons mTune zip-up caseThe mountune Cat Back Exhaust for mk7 Fiesta ST reduces back pressure and improves performance, whilst keeping cabin intrusion boom to a minimum. Designed and developed in the UK, mountune's cat back exhaust utilises a Helmholtz chamber design in the rear silencer. This helps cancel out unwanted frequencies due to the way in which the exhaust gas waves are reflected. Despite being more complicated and therefore expensive to manufacture, this design
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