They replaced worn out factory parts with new aftermarket parts.
If they had replaced worn out factory parts with new factory parts, they would have seen even more improvement. I've had these cars since new. If you keep everything good, it's like driving on rails around tight turns.
So very true, for instance when I redid the entire suspension on my 01 Sport, although not all parts where terribly worn, I went from old to new and this included the Deeza non-passive rear steering toe adjust linkages. Included was new shocks all around w/ Eibach Pro lowering springs, Moog sway bar end links, Control arms and multiple fresh hardware and of course this all afterwards made the whole car drive differently and tighter.
Tight like a go-cart ...
but it was far from anything to do with just swapping from passive to non-passive rear steering, it's as you said, going from old worn out parts to new fresh parts.
+1
Brian,
there is no harm in going with some aftermarket non-passive steering links, upgrade or not, it's a replacement. The OEM's are a little pricey compared to the most latest RimmerBro's non-passive from the UK. If you're looking to save a little in dollars these are a good bet. The Deeza's are essentially the same units, just can't get them anymore. You mentioned it's just a great winter beater for ya so why bother sticking the expensive stuff on it as you said. Makes sense to me also. The Rimmerbro's will serve you justice, direct fit, ships fast and they look good. I'd hit them with some clear rattle can though once they are installed just to assist a little with keeping the rust off.
With respect to which is better, passive or non-passive rear steer. Of course the OEM rear steer as little as it may be, is truly better. The car was designed to flex a little around the corners and it assist in bringing the rear end around with the front in smooth turns. A great concept and appreciated by many, however going to non-passive steering is also a personal preference and the difference is so small you'd perhaps never know it. A member on here once quoted, "Not enough Racecar" which always held true with myself.
Going to non-passive rear steer linkages will indeed feel tighter but it's as already mentioned due to simply going from an old worn part with too much play to a new part with no play. If you were to stick the OEM passive steer linkages in there, it would also feel more tight around corners, simply as above because your replacing a worn out part.
I say give the RimmerBro units a go ... several of us have gone this route and they work great. Less $$$ spend also.
I have them in my 04 LSE and it's just fine.
Do note that all this rear toe adjust in/out flexing in the rear does not resolve body roll. You'd have to replace some springs and shocks to get that "upgraded" feel.
... btw, Sports shocks are hard to come by these days. That's not to say there aren't a few sets laying around on some shelves someplace.
Hate driving on the road when its wet, and hitting those rubber lines where they fill in cracks. Its like ice when the rear is out of alignment.