Products > Ford Focus ST225 (mk2) > Exhausts > dsci ST Cat Back

dsci ST Cat Back

dsci ST Cat Back

£425.00 Inc. VAT

(Now back in stock)3 inch stainless steel Cat Back with 4 inch slash cut tips either rolled in or hard edge for Ford Focus ST225

dsci ST Cat Back

3 inch stainless steel Cat Back with 4 inch slash cut tips either rolled in or hard edge for Ford Focus ST225

Click play to hear the ST225 exhaust!

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Rolled In or Hard Edge tips

The dreamscience cat back is a 3" diameter mandrel bent system with branded inline silencers and come with the choice of two tips styles. This is very different to a conventional Focus ST system as it does not use the traditional large silencer, with these fitted it allows the exhaust gases to exit the engine quicker.

After customer feedback, we have also taken the 2 rear in line resonators and increased their size from 4” diameter to 5” diameter, the effect of this is a softened and reduced cabin noise, especially in the cruise, while maintaining the aggressive roar and growl at the rear and outside of the car.

The dreamscience cat back gives a sporty sound that is not intrusive as it is subtle when in the cruise but gives an aggressive growl when full throttle is applied. Listen for yourself, click play on the video!

Exhaust system in videos are standard resonated system. 


dsci ST225 Cat Back Gallery

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dsci ST225 Cat Back     dsci ST225 Cat Back     dsci ST225 Cat Back

dsci ST225 Cat Back     dsci ST225 Cat Back     dsci ST225 Cat Back

dsci ST225 Cat Back     dsci ST225 Full Exhaust     dsci ST225 Full Exhaust        



Resonated System

This system gives a very sporty sound that is not too intrusive or excessive, it is tasteful when in the cruise, however an unmistakable aggressive roar when full throttle is applied. This is the most popular system ordered due to the tuned nature of the system and all round benefits offered. 

Non Resonated System 

This system is not for the faint hearted and has almost no silencing. You will experience drone and vibration transfer to the cabin in the cruise, and people will hear you coming from another post code away. Ideally suited for track days or short journeys or general anti social behaviour. Half of those who order non resonated contact us within a few weeks and ask to buy the resonated section as they feel its too loud.


Fitting Service

If you are able to bring your vehicle to our HQ in Hull then we can provide a fitting service for this item, priced at £60. Please select this option below and we will contact you to arrange your preferred date and time.































Black Exhaust Tips (Ceramic Coated)

Black Exhaust Tips (Ceramic Coated)

Price if bought individually: £125.00

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United Kingdom

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3-5 days


Rest of the World

3-7 days


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£425.00 Inc. VAT

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