31/07/2026
Finally got around to doing a sound check after fitting the primary cat delete to our Vantage demo car. 🔊
Why remove the primary cats instead of the secondary cats?
The primary catalysts retain a huge amount of heat in the engine bay. On a car where the cooling system is already working close to its limits, reducing under-bonnet temperatures is a major advantage for track use and helps keep temperatures under control during longer sessions.
Next on the list is a set of high-flow Euro 6+ secondary catalysts. The aim is to remain emissions compliant while maximising exhaust flow, performance and sound.!