COBB 3" Catted Downpipe and Exhaust FoST - WITH FLASH TUNE

Starting at: $599.00USD

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Stratified Notes:

The COBB Catted Downpipe is a very high quality unit thanks to it's machined V-Band and quality fabrication. This downpipe is good for OEM or aftermarket turbos and the catalytic converter will help keep the smell down as well as prevent emissions issues in most states. Upgrading your downpipe will help your turbo spool faster and breathe easier on the top end. Even a poorly calculated "Butt-Dyno" will feel the improvements from an upgraded downpipe.

We include a $50 credit towards a Stratified Flash Tune with this purchase!


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

  • 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

**If order needs to be shipped outside of the USA, additional shipping charges will be calculated and added after the purchase.


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  • Model: Mk3_FoST_591202
  • Shipping Weight: 4.6kgs
  • 1 Units in Stock

This product was added to our catalog on Thursday 11 June, 2015.