The Husky spent the day at R&D getting derestricted and having a bit of bling added.
First up they ripped out the O2 sensor, plugged the hole ,added a resistor to the wiring plug and remap ECU to suit.

Then off came the standard can/cat convertor. I put it on the scales when I got home. It weighs over 4kg.

Then on with a nice free flowing Barrett. To my surprise the Barrett pipe is as quiet as the standard. A bit deeper note but nice and quite. Note sure what it weighs but I bet its no where near 4kg.

She is running much nicer now. In standard form it was very snatchy on the throttle, would surge when cruising and backfire like a bitch on deceleration. Now its runs as smooth as silk. Cruises at 110+ and feels like its barely idling and no more backfire when I chop the throttle. Plus the Barrett looks fully sic brahhh.