Well, a couple hundred miles and an autocross event later, I love the Watts Link.
It added traction when cornering/turning, even when accelerating from a stop and turning.
And it seems to have reduced body roll somewhat.
It also seems to have changed the rear-end feel of the car a bit over bumps, it's a bit cushier but firm.
Updates on the car:
During the autocross event my fiancee and I did last Saturday, I overheated my brake fluid, my blower belt decided to start melting onto the pulleys, and that made me forego doing the last run of the day.
So new belts were ordered, I have new DOT4 Amsoil brake fluid waiting to be flushed-in, and yesterday I started working on the car.
Got the blower belt replaced (a fun project since a large aluminum bracket has to be removed), and this was made much easier by the fact that I was replacing the coolant tanks with newly hydro-dipped ones.
Also got the thermostat replaced with the 170-degree Reische unit that I've had for over a year.
Stopped about half-done since the shipment with the new main serpentine belt, its tensioner, and a new idler pulley, didn't show up yesterday like it was supposed to.
But got the new engine coolant tank installed, and today will hopefully button it up, top off the coolant systems, and re-start it.
Still need to flush the brake fluid, and I might actually order some new DOT 5.1 fluid for that service.
The new hydro-dipped coolant tanks I picked up yesterday from the dipper:
Pictures from yesterday's work:
The alternator/front serpentine belt, original OEM part at the current 37k miles, being replaced mostly because it has to be removed anyway for the blower belt to be replaced:
The old and the new blower belts. The old blower belt was starting to show a really odd wear on half of it, and it was sticky, this was the half that was leaving gummy residue onto the pulleys:
The belts removed, the top silver idler pulley clearly shows the belt residue that the blower belt was leaving on it:
Pulleys cleaned and new blower belt routed, aluminum tensioner bracket reinstalled and torqued to 25 Nm (approx 222 in-lbs):
Thermostat-replacement. This caused a bunch of fluid to leak out, almost no way to have it not do that because of where the t-stat is located. I had a pan under the car that caught most of it.
The factory 180-degree thermostat:
And the factory t-stat next to the new 170-degree Reische t-stat:
The way it looked at the end of the day yesterday, with the engine coolant tank installed and connected, but not re-filled yet, just in case I have to take it apart again for some reason: