superb spec Will, what improvement if any did the LSD make to the car?
The LSD is amongst the best mods I've done, it kills the understeer and tendency to wheelspin typical of most FWD cars.
You can be going around a medium/large sized roundabout in high revs in second gear, floor the throttle and keep your foot in (and hold on tight as you go round and round
) and it just grips and grips and grips and goes round in circles....usually the rear steps out before the front lets go, with the suspension/ARB setup I have, but with the diff it makes it so controllable to add a bit of throttle and pull back on line.
Putting the power down mid corner is so much easier with it fitted, you can still get it to understeer on the throttle but you have to be really really silly with your driving...front end grip is just massively improved. I can see why people consider an LSD so important for performance FWD cars.
There aren't really any downsides to the Quiafe ATB to my mind, though it is an expensive mod - due to the way it operates (planet gears) you don't get the harshness of a conventional plated LSD so tight maneuvering isn't a chore, theres no sign of wheel hop and so on.
In the wet or on very bumpy roads when the diff starts to work (under a bit of throttle) it can feel as though the car is tramlining slightly as it pulls to follow the camber of the road or bumps...takes a little getting used to but its easily controllable, not really snatchy or harsh, and preferable to wheelspinning everywhere.