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cat back exhaust, focus st250 performance partscat back exhaust, focus st250 performance partscat back exhaust, focus st250 performance partscat back exhaust, focus st250 performance parts
cat back exhaust, focus st250 performance parts
cat back exhaust, focus st250 performance parts
cat back exhaust, focus st250 performance parts
cat back exhaust, focus st250 performance parts

Dreamscience Focus ST250 Cat Back Exhaust

£645 (£537.50 ex vat) In Stock

Fitting Service (Hull UK) *

Black Tips (Ceramic Coated) *

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More Info

Dreamscience Focus ST250 Cat Back Exhaust

Dreamscience offer a full 3″ stainless steel cat back exhaust system, providing your St250 with some sonic grunt! with the addition of a small bypass pipe they exhaust really does give the ST250 the exhaust tone it deserves. This is one of our must popular systems due to its legendary design for sound and performance. This is a aggressive, tasteful set up designed to unleash the fury from 4 cylinder engine. This includes the addition of a small bypass pipe that compliments a unique rasp when under acceleration. The Exhaust Includes a optional blank off on the bypass valve to decrease sound if necessary. Please take into account that this is a Motorsport Exhaust and is designed to be much louder than the standard system.

To hear the Dreamscience Cat Back Exhaust in action, please check out the links below; 

ST250 Exhaust

ST250 Exhaust 2

ST250 Exhaust 3 (Inside the cabin)

Shipping info: 

This product is available for shipping inside the Domestic and International. Shipping times may vary. Extra charges may be incurred if your locations is considered Remote. If this is the case a member of our team will be in touch shortly after you have completed your order.

Fitting info: 

Our Experienced Techs will take good care of your car whilst it is with us. We Follow a strict procedure for each job to ensure a high level of quality is delivered.
This Procedure is below:
– Protect Vehicle Steering wheel with Cover.
– Protect Seats with Cover.
– Pre-work test Drive to fault find before we carry out work.
– Pull in, lift and Strip Vehicle.
– Book out parts and Fit.
– Rebuild
– Road test, check over.
– Final Clean down and Handover.

Technical Assistance. 

For fitting tips and advice please call our technical helpline on +44 1482 224433 to speak with one of our Qualified Technicians or email in on



Dreamscience Focus ST250 Cat Back Exhaust

4″ Slash Cut Hard Edge Tips

Rear Back Box with Bypass pipe

3″ Angled Pipe

3″ Straight Middle section

Full Fitting Kit

Optional Blanking Plates for Noise Reduction.


5.00 out of 5
Read what our customers say


5.00 out of 5
  1. Josh

    I fitted this exhaust a few days ago and I love it. It was easy to fit, and everything lined up and fitted straight away which a lot of plug and play parts don’t so that was great. The tone is nice and deep and louder than the standard exhaust with a resonator delete, this is with the bypass pipe blanked off too. As for drone on a typical A road it isn’t any worse and is still not terrible on the motorway, especially when compared to the scorpion system.

  2. kieran.prince (verified owner)

    Great quality, fitment was perfect. Another Great DS product.

  3. Daniel

    Bought this for my birthday around 3 years ago. Had it posted and fitted by a local garage near me. They said it was a excellent fit and easy to install. This system sounds amazing, probably the best sounding for the mk3, very btcc like and gives the car character unlike other systems that are just loud noise and sound crap. Highly recommend.

  4. Anand

    I can’t fault this system it’s very good for the focus ST, seen alot of videos with this system prior to buying it and it doesn’t do justice until you hear it in person. Not overly loud but has a nice burble to it and gets louder when you put your foot down. The customer service is excellent.

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