GMR High-Flow Cats (pre-MY10.5 V8 Vantage)


Free up the sound and power of your Aston Martin V8 Vantage with GMR’s high-flow cats!

These were specifically designed to work with their supercharger kits but also make great power even if staying naturally aspirated. Shaped for optimal gas flow, these cats will make power regardless of whether you’re supercharged or not. As an added bonus, the pair weighs over 6 lbs (~3 kg) less than the factory components!

See Fitment Notes below for information about vehicle compatibility.

Fitment Notes

These are a direct replacement for the OEM catalytic converters on a 4.3L V8 Vantage and pre-MY10.5 V8 Vantage (which uses the same exhaust system as the 4.3L V8 Vantage).

They can also fit the post-MY10.5 V8 Vantage, but will require a set of GMR headers or VelocityAP headers.


This product ships directly from the manufacturer. Delivery times are based on the manufacturer’s inventory availability. Please contact me prior to placing an order if you want me to check availability.

Parts Information

Make Model Year
Aston Martin V8 Vantage 2009
Aston Martin V8 Vantage 2010
Aston Martin V8 Vantage 2005
Aston Martin V8 Vantage 2006
Aston Martin V8 Vantage 2007
Aston Martin V8 Vantage 2008