Land Rover Decat Exhausts

Diesels don't need a cat, and the on a Discovery they clog up over time and restrict the flow of exhaust gases in the pipe, which in turn restricts power & torque.

So fitting a decat exhaust downpipe will help the turbo spin up quicker and give you more power, torque and help increase your MPG.

A step by step guide on how to fit a decat exhaust can be found here:
How to fit a decat exhaust downpipe to a Land Rover Discovery