Ford Focus ST Catted Downpipe

$ 650.00

Availability: Ships in 24 hours
Product Code: 591202

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Free up your Focus ST's engine with the COBB 3" Downpipe! This direct replacement for the factory downpipe features a 200 cell count high flow catalytic converter and 304 stainless steel tubing. The CNC machined v-band flange and 4" flex section ensures perfect OEM-like fitment. All of these features combine to provide a free flowing exhaust outlet for high energy exhaust gases to reduce turbo back pressure and increase turbo efficiency. This downpipe is the perfect step towards Stage 3 power! Stage 3 off-the-shelf maps are available for the Focus ST Accessport for a perfectly tuned out-of-the-box experience.


The COBB 3" Stainless Steel Catted Downpipe for the 2013 Ford Focus ST is a direct replacement which features a high-flow 304 stainless steel construction.

Ford Focus ST Catted Downpipe
  • 3" 304 Stainless Steel Construction
  • 4" Flex Section
  • 200 Cell Count High Flow Catalytic Converter
  • CNC'ed V-Band Flange
  • 2.5" & 3" Gaskets to Work w/ Stock or Aftermarket Cat-backs

Customer Photos

Ford Focus ST Catted Downpipe is rated 4.6 out of 5 by 10.
Rated 5 out of 5 by from Great Product I had the pleasure of visiting the COBB facility in Orange County California. I purchased this downpipe there and they installed it. This downpipe finished off my stage 3 package. Software updated with AccessPort. Car sounds great and performs flawlessly. As far as performance is concerned, it's like a different car!
Date published: 2014-04-23
Rated 5 out of 5 by from Excellent purchase Purchased after I ordered the cat-back exhaust. Highly recommend using a lift since there isn't much room for working with the downpipe if you're on the ground with ramps. I could not pass New York State inspection so I would HIGHLY recommend buying the Vibrant J defouler to put on the rear o2 sensor while you are already swapping downpipes.
Date published: 2017-03-02
Rated 4 out of 5 by from Superb construction What impresses me most about the downpipe is the quality of construction. The welds are superb and the construction is meant for the long term. And, it fit perfectly and mated to the stock exhaust without questions. Most of the power gains undoubtedly come from the 200cel cat and tuning. But this comes at a price of a CEL. Apparently the Ford rear O2 sensor is quite picky. There might be ways around the CEL, but you will need to find answers elsewhere. I am very happy with this product!
Date published: 2018-12-15
Rated 5 out of 5 by from Downpipe I like the Downpipe. You can really hear the turbo and there is more kick from it. I only get a little gain in horsepower but the turbo response is amazing. It is a lot of money but I feel that it is worth it.
Date published: 2014-04-23
Rated 2 out of 5 by from Sounds and performs well but smells Installed about 2 weeks, seemed to have a leak since i got a fuel/exhaust smell in the cabin. Bought new clamp and gasket had it retested for leaks, Nothing. No noticable reads on Accessport to point towards a problem. Got sick of cabin smelling like fuel/exhaust returned to stock problem solved.
Date published: 2018-05-17
Rated 5 out of 5 by from Awesome product Finally installed it had been running the Stage 3 Power pack with out it Was worried about smog check well put it on and no worries sounds and performs great Also easy install
Date published: 2018-07-01
Rated 5 out of 5 by from Great Purchase Cobb makes a great product! Quick shipping, got it installed in no time. Fit was perfect and performance to match! A+!!
Date published: 2015-09-04
Rated 5 out of 5 by from Solid! Great. Went on easy, a much superior product when compared to the stock.
Date published: 2019-03-02
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