Invidia 13+ Ford Focus ST Down Pipe w/ High Flow Cat

This Invidia downpipe is built for the 2013 and newer Ford Focus ST. It replaces the factory downpipe, which is the section of exhaust pipe directly after the turbocharger and before the main exhaust system. This part includes a high-flow catalytic converter, designed to reduce exhaust restriction while still cleaning up emissions.

The primary benefit of upgrading your downpipe is improved exhaust flow. By using a larger diameter pipe and a less restrictive catalytic converter, this Invidia unit allows your turbocharger to spool up faster and can help it produce more boost. This often translates to a more responsive engine and a noticeable increase in power, especially when paired with other engine modifications. The construction uses durable stainless steel, which is a solid choice for exhaust components as it resists corrosion and holds up well to the heat and vibration of daily driving. The high-flow cat is a key feature, balancing performance gains with emissions control, though it's important to note this specific model is not CARB approved and cannot be shipped to California.

When installing this downpipe, you'll typically be removing the factory unit and bolting this one in its place. It's designed as a direct fit replacement for the stock component, aiming to simplify the installation process. Ensure you check local emissions regulations, as this part is not legal for sale or use in California. For optimal performance and to take full advantage of the improved flow, it's often recommended to pair this downpipe with an ECU tune.