Installing an AML Performance Secondary CAT Delete Kit in an Aston Martin DB9

If you are a member of any of the Aston Martin Owners FaceBook Group or online Forums (like PistonHeads or 6SpeedOnline) you will likely have seen some chatter talking about fitting a ‘Secondary Cat Delete Kit’ (SCDK) in your car to increase the power and improve the sound.  It’s not like the stock DB9 has a deficiency in either department already, but its promise is a simple change will give you more of each.  Intrigued by this I couldn’t resist researching how to tackle this.

There are several vendors that make SCDKs, and in this article I will be covering my personal experience with the kit from AML PerformanceAML Performance is a small company in the UK, and I met its parts manager Mark Holden in the Aston Martin Owners Facebook Group.   He is a DB9 owner himself.  Mark suggested I might want to try out a set of their SCDKs and I took him up on the offer.   Read on to learn about their kit and how to fit it. Continue reading “Installing an AML Performance Secondary CAT Delete Kit in an Aston Martin DB9”

Exhaust Sound Change after Installing a Secondary CAT Delete Kit in an Aston Martin DB9

Secondary CAT in an Aston Martin DB9

I’ve been fiddling with my DB9 trying out several ‘Bolt On’ performance improvements.  One of them is a ‘Secondary Catalytic Converter Delete Kit’ (SCDK) which promises to:

  • Reduce weight (it does by about 8 pounds)
  • Increase Power (yet to be seen- Dyno test coming soon)
  • Improve the Sound

This article is all about the sound, and how it changes. Continue reading “Exhaust Sound Change after Installing a Secondary CAT Delete Kit in an Aston Martin DB9”

Will an Aston Martin DB9 Pass California Emissions Testing After Installing a Secondary CAT Delete Kit?

Secondary Catalytic Converter

If you’ve been following this Blog recently you know I’ve been interested in testing several bolt on performance upgrades for my DB9.  One of those upgrades was a Secondary Cat Delete Kit (SCDK).   You can learn about how I installed it by checking out my other article here.   I wanted to learn if my car would still pass a stringent California Emissions SMOG test with an SCDK fitted.  Read on to find out if it did. Continue reading “Will an Aston Martin DB9 Pass California Emissions Testing After Installing a Secondary CAT Delete Kit?”

Installing a Velocity AP Secondary CAT Delete Kit in an Aston Martin DB9

If you are a member of any of the Aston Martin Owners FaceBook Group or online Forums (like PistonHeads or 6SpeedOnline) you will likely have seen some chatter talking about fitting a ‘Secondary Cat Delete Kit’ (SCDK) in your car to increase the power and improve the sound.  It’s not like the stock DB9 has a deficiency in either department already, but its promise is a simple change will give you more of each.  Intrigued by this I couldn’t resist researching how to tackle this.

There are several vendors that make SCDKs, and in this article I will be covering my experience with the kit from Velocity AP.  Velocity AP is a great company steered by Stuart Dickinson.   They started in the UK, and moved their facilities to British Columbia, Canada a few years back.  They make all their products in house.   Read on to learn about their kit and how to fit it. Continue reading “Installing a Velocity AP Secondary CAT Delete Kit in an Aston Martin DB9”

Removing the Secondary Catalytic Converters from an Aston Martin DB9

Removing the Secondary Catalytic Converter from a DB9 isn’t something you’d do every day unless you are working on the exhaust system.  For me, I’m working on installing and testing a ‘Secondary CAT Delete Kit’ that supposedly improves the performance and sound of the car [read about that project in my other article here].   The first step in that process is to remove the original secondary CAT, and that’s what this article is about. Continue reading “Removing the Secondary Catalytic Converters from an Aston Martin DB9”