I am enjoying the sway bar. The improvements that I've noticed are:
1. I can maintain higher speeds on turns like clover leaf style entry/exit ramps on the freeway, as that creepy lean is gone.
2. Steering is more responsive.
3. My car maintains its position better when I am passed by trucks (I don't get blown around as much).
The car is just more fun to drive. Like the way it feels to ride your skinny-tired road bike after being on your mountain bike all winter.
I'd recommend it to anyone. It's an inexpensive upgrade, for all you get out of it.
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View my fuel log 2014 Mirage DE 1.2 manual: 53.1 mpg (US) ... 22.6 km/L ... 4.4 L/100 km ... 63.8 mpg (Imp)