Invidia Catted Downpipe – 2013-2018 Ford Focus ST

Catted Downpipe for the 2013-2018 Ford Focus ST

The Invidia Catted Downpipe for the 2013-2018 Ford Focus ST replaces the factory downpipe on the EcoBoost 2.0T with a high-flow stainless unit featuring an integrated high-flow catalyst. The factory Focus ST downpipe is the primary restriction in the post-turbo exhaust path, the Invidia replacement eliminates this while maintaining catalytic function.

DETAILS

• High-flow catalytic converter
• 304 stainless
• Improves turbo spool and throttle response

The EcoBoost 2.0T in the Focus ST responds strongly to downpipe work, power gains are measurable on a stock ECU map and significantly larger with a supporting tune. The high-flow cat maintains emissions compliance.

The downpipe is the highest-return single exhaust modification on the Focus ST platform. We recommend it before the cat-back because the improvement in drivability is more noticeable.

What’s in the Box

• Catted downpipe
• High-flow catalytic converter (integrated)
• Gaskets
• Mounting hardware
• Installation instructions

Why Choose Invidia

Invidia has been manufacturing performance exhaust systems in Japan since 1999, and in that time they have built a reputation that carries real weight in the tuning community. Every system is manufactured using SUS304 stainless steel and mandrel-bent tubing, which eliminates the flow restrictions and weak points that crush-bent alternatives introduce at every corner. Their in-house engineering team designs each application from scratch rather than adapting a generic template, which is why Invidia fitment is consistently tighter than the competition. The result is an exhaust that installs cleanly, seals correctly, and lasts. Invidia backs their products with a quality standard that is visible in the finish, the weld quality, and the hardware, details that reflect over two decades of refining the same core manufacturing process.

The RallySport Take

The Invidia catted downpipe is the first modification we recommend on the Focus ST. The EcoBoost responds strongly to it. Fits the 2013-2018 Ford Focus ST with EcoBoost 2.0T.

Fitment