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Cat Back Exhaust (Non-Resonated)

Part number: FD18

Ford Fiesta ST 150 Performance Exhaust


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Duologi Finance - Cobra Sport Exhausts

Cobra Sport exhausts systems come with a lifetime warranty for the original purchaser, giving you ultimate peace of mind.

All Cobra Sport exhausts are manufactured in the UK from certified grade 304 stainless steel and TIG welded for a superior quality finish.

EML lights may activate after removing the standard O/E catalyst. An ECU Re-map is recommended to correct this problem and stabilise all power increases.

The product images shown are for illustration purposes only and due to product enhancement may not be an exact representation of the product.

For any questions, queries or simply for our advice on these products call us on + 44 (0)114 244 7123.

Product Description


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.

These Fiesta ST performance exhausts are made in 2.25"/57.1mm pipework and fit from the catalytic converter section backwards (Cat-back) these exhausts replace the centre and rear sections.

This non-resonated exhaust makes the system louder as it excludes the centre silencer and therefore, has a sportier exhaust note. This exhaust however, is also available as a resonated version (including centre silencer) which is a quieter option.

All relevant fittings and gaskets are supplied.

Please Note:- Some of the fitted exhaust images may show alternative parts.

Related Media Files

Example of Fiesta ST sports exhaust (Sports cat & resonated cat-back system).

Example of Fiesta ST 150 sports exhaust (cat-back resonated, de-cat & front pipe).

Example of Fiesta ST 150 sports exhaust (cat-back - resonated).

Cobra Sport Exhausts Ford promotional video.


Very goodReview by Keuz
A powerful sound for me the best sound for the st on top of competitors.

I love the sound of the crackle when the catback is hot this is amazing ! (Posted on 05/09/2019)
Back box is great!!!!Review by Mickey
I can't be any happier with my purchase it sounds just like the videos you have provided on your website. My car is a fiesta st 150 mk6. The stainless steel exhaust has proven a great modification and also looks brilliant! I will definitely be thinking about getting the cobra sports cat in future
Thank you very much! (Posted on 21/02/2017)
Great Product awesome soundReview by Guitarplayer65
After buying a Cobra back box for my VXR Corsa, I wanted to get the cat back system for my ST as I simply fell in love with the sound. I found fitting the system very easy, it hangs on the stock hangers so no other mods were needed, all I had to do was cut the stock exhaust off. It fitted perfectly in the cut out of the rear bumper ( even more so after it had been through a few heat cycles). When I started the car up for the first time it made the whole garage shake with this amazing deep sound!!
I do a lot of motorway driving and I was a little worried about how the exhaust would sound at 70mph (bad experiences with other exhaust companies) but with Cobra I found that at 70 the sound is no louder than the road noise is, so no head ache on long journeys. Even at 30mph I can't hear it at all but when you put your foot down it screams which is good fun.
Performance wise, its made a difference, there's more torque lower in the rev range and it pulls much faster through the gears.
Overall, I've been surprised with how easy this exhaust is to live with and with how well priced it is. I plan to finish off my system with a cat and flexi pipe from Cobra. (Posted on 16/03/2016)
Ford fiesta-st-Cobra_ST Exhaust Cat Back System (Non-Resonated)Review by Gaz
superb system love the sound, even the growl u get! small scratches and a small dent in the tailpipe edge but barely visible to see! came on date as promised! must get!!! (Posted on 19/02/2014)

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