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Turbo Back Exhaust / 3" Bore (with Sports Catalyst / Non-Resonated)

Part number: FD66b

Fiesta ST 180 & ST 200 Performance Exhaust.

Pipework - 3" (76.2mm) bore.

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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.

This Fiesta ST performance exhaust is made in 3"/76.2mm pipework and fits from the turbo backwards (Turbo back) these parts replace the front pipe, standard catalyst, centre and rear sections.

This high flow sports cat version will enable you to pass a UK MOT emissions test or police road side checks.

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

All relevant fittings and gaskets are supplied. (Except turbo gasket).

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

Cobra Sport Product Review

The team at Cobra Sport couldn’t wait to get their hands on the new Ford Fiesta ST and straight from the showroom this car was delivered to us for development of the exhaust. This car is surely set to be one of the best hot hatches ever to be sold and would definitely benefit from the added excitement which a Cobra Sport exhaust can deliver.

The system benefits from all of the usual Cobra Sport refinements with mandrel bent, TIG welded, grade 304 stainless steel used throughout the systems as standard. You can be assured of only the best quality in a Cobra Sport system. Matt Thomas, Sales Manager at Cobra Sport says “The new ST system has provided us with some exciting results, independent testing has revealed that the 3” Turbo back upgrade produces an additional 13bhp from the standard system with a 10% increase in torque.

A substantial weight saving can also be achieved with the 2.5” cat back system providing a whopping 17.2% decrease in weight from the Original Equipment version. Overall the Cobra Sport system makes a great car even better”. The styling of the system is finished off with either a subtle ‘OE look’ twin 3” slash-cut tailpipe or for something a little different there is a 3.5” outward rolled option on offer. Both tailpipes come in a highly polished 304 stainless steel finish.

Related Media Files

Example of Fiesta ST sports exhaust, the first clip is 3" non resonated turbo back exhaust with de-cat, followed by 2.5" non resonated cat back exhaust.

Example of Fiesta ST sports exhaust (3" non resonated turbo back system with sports cat).

Example of Fiesta ST sports exhaust (3" non resonated turbo back system with sports cat).

Example of Fiesta ST sports exhaust (3" non resonated turbo back system with de-cat).

Example of Fiesta ST sports exhaust (3" non resonated turbo back system with de-cat)

Example of Fiesta ST sports exhaust (3" non resonated turbo back system with de-cat)

Example of Fiesta ST sports exhaust (3" non resonated turbo back system with de-cat)

Cobra Sport Exhausts Ford promotional video.


The best for your ST!Review by X222
This full cobra system is amazingly engineered and manufactured, as soon as I had the exhaust and catalytic convertor delivered I knew I had made the right choice! There's no faults to be found when you're looking at the build quality.
Now I have fitted the system I haven't stopped grinning from ear to ear! This system transforms the sounds of the Fiesta and gives it that deep sporty tone it really deserves, a vast improvement from the stock system. The tone is perfect all through the rev range, it sounds like a qulaity product rather than just a loud uncontrolled racket.
If you're in the market for an exhaust I would say look no further that Cobra, top work guys! (Posted on 13/03/2015)
If you're after quality, look no further!Review by TMC
This may be on the upper end of the scale price wise for ST180 exhaust choices, but the quality is absolutely outstanding (probably why we receive a lifetime guarantee).
The TIG welds are all extremely neat and have clearly been done by people who know what they're doing. The whole exhaust has clearly been manufactured by experts.
In fact the only thing I've appreciated more than the engineering involved in the exhaust, is the new note that the ST now produces with this fitted. The ST180 is quiet car in the exhaust department, this has now all changed now I have a full Cobra system! It's not loud to the point where it is annoying, it's the kind of noise you want to be producing, loud and sporty on full chat, and the burbles at low speeds are great too. It's hard to describe the noise it produces, but it's not raspy like some of the exhausts available for the ST, it's deep, sporty and the right volume. After a lot of researching and head scratching I went for this system, and I'm glad I did, wouldn't have any other system now. (Posted on 24/02/2015)

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