Porsche 911 997 Carrera 200 Cell High Flow Sports Catalytic Converters (Pair) By Topgear

Want to free up some exhaust flow on your 997 Carrera?

These are a pair of high-flow sports catalytic converters from Topgear.

They're 200-cell units, which means they flow way better than the restrictive factory ones, giving you a bit more power and a better sound, but they're still road-legal (in most places, check your local laws).

They're a direct replacement, so they bolt right up to your existing exhaust.

They have the oxygen sensor bungs in the pre and post catalyst locations, and they use a 3-bolt connection.

Made in the UK, they come with a 1-year warranty and all the mounting hardware.

If you're looking to wake up your Porsche's exhaust note, these are a solid upgrade.