I've just done this upgrade to my 2000TC. It's a substantial improvement, so many thanks for working it out Demetris. I did mine with the motor in situ. I didn't think it would be feasible to fit the new mounts with the engine brackets in place, firstly as I didn't think the motor could be jacked high enough, and secondly, as access to the holes in the subframe for filing them out would be hindered by the brackets, so I did the job by removing the brackets. Yes, inlet and exhaust manifolds need to be removed before the bracket on that side can be removed. Apart from that, that side of the motor was plain sailing. The other side of the motor was trickier than it looked, as both oil feed pipes to the motor had to be unbolted and the hoses moved so that the bottom bracket bolt could be accessed. Then I deemed it advisable to bolt them back into place before doing any filing in that vicinity! The job did score a bit highly on the pain in the arse-o-meter, but was well worthwhile. In my case, the improvement at idle was minor, but the improvement with revs and speed quite significant. I now find myself letting the motor rev out a bit more before changing gear, which makes the car seem quite a bit quicker. And yes, other noises become more noticeable, in my case, tyre noise coming through the bulkhead via the horizontal coil springs. As a slightly unrelated aside, I fitted my car with the 3.02 diff from a V8 car, replacing the original 3.54, and I recommend this to anyone who does no towing or climbing of mountains fully loaded. The car is a little slower off the mark, but winds out more nicely through the gears, so is no slower overall, and revs at 100kph are dropped from 3100 to 2700.