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Ford fiesta st exhaust

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Hello everyone just need a little advice, I am thinking of putting an St exhaust on my ecoboost 1.0 but I'm not sure if it will fit properly or even at all, in theory it should be a simple swap but I'm not 100% sure, any feedback is appreciated, thank you. 

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There is some work required. Excellent thread here should tell you what's needed for the exhaust and lots more:


Info on ST exhaust is around page 10 of the thread iirc.


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  • 2 weeks later...

Hi mate, I had an exhaust fitted when I had my black edition. If you want a proper 'ST' shaped exhaust, you'll need to replace your rear bumper with the ST diffuser as the tailpipes on an ST exhaust do not match the cutout on the ecoboost rear bumper.


However, some companies such as Cobra sell an exhaust which fits the Zetec s bumper however I wanted the ST diffuser as it finishes the job, looks so much better. Mountune used to sell an exhaust for the MK7 ecoboost but it included the ST diffuser to finish off the look.


The diffuser adds to the price so it costs more but honestly, looks so much better 👍🏼

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