If you read my article on Power to Weight Ratio (check it out here) I was trying to work out where the best ‘bang for the buck’ was on performance upgrades for my DB9. One of the standout items was a simple change to a high flow performance air filter. These allow the engine to breath easier with less intake restriction. The claim was that they can add horsepower and have the added benefit of they are reusable so you can easily save more than they cost after a few service intervals. Win-Win. I figured it was time to try a set out. Continue reading “Installing a Velocity AP GT4 Airbox Delete Kit in an Aston Martin DB9”
Aston 1936 