Contact: Free Shipping on most orders over $500!

  • MY CART    0

    Your cart is currently empty.

COBB- Ford Focus ST Turboback Exhaust System




The COBB Tuning Turboback exhaust for your Ford Focus ST. Bolt-on installation of these components offer excellent power gains, outstanding build quality and an impressive exhaust note.

Ford Focus ST Turboback Exhaust System

  • 3" 304 Stainless Steel
  • Dual 4" Slash Cut Tips
  • CNC Mandrel Bent Tubing
  • Custom Inline Mufflers
  • 300 Cell GESi High Flow Catalytic Converter

This direct replacement for the factory downpipe features a 300 cell high flow catalytic converter and 304 stainless steel tubing. The CNC machined v-band flange and 4" flex section ensure perfect OEM-like fitment at the turbocharger. An all new cast stainless 2-bolt 3" flange aids in both more precise assembly and also reduces stress during installation of the part. Many downpipes utilize a laser cut plate flange at the termination point to the cat-back exhaust. These plates are susceptible to minor warping while they are being welded to the tubing. A cast flange is much more rigid and reduces the possibility of flex while exposed to extreme heat during assembly. This rigidity also comes into play during installation of the downpipe. In the past, we have received reports of warped flanges during installation due to over tightening of the hardware. Over time, this deflection can lead to exhaust leaks. The new cast version, combined with hardware improvements outline below, will not bend during installation and will allow for a much more reliable seal. To cap it off, a multi-layer steel gasket is used between the downpipe and cat-back exhaust to make for a leak-free junction.


This part is in the process of external testing with the EO process ongoing.

While we believe that that these parts comply with EPA’s Anti-Tampering Policy we have not completed the testing/CARB EO submission process.