I have a second-hand story on how these subframe connectors help the handling.
One of my good friends is a suspension and handling expert and just retired from working on and racing formula fords and mustangs. I asked his advice on how to improve my suspension with a limited budget (with buying koni's on the top of my mind). He explaind to me (to my surprise) the first thing to get is the front strut bar followed by subframe connectors, then to finally buy the Konis. I asked him why the subframe connectors?
He said they are not as important on all-wheel drive and two door cars, but on four door, two-wheel drive cars they make a huge difference when executing high speen turns. Basically the pillars between the front and back door acts as a sort of rotation point. When turning say, left, the portion of the car in front of the pillars will flex left, whereas the section of the car behind the pillars will flex right, away from the turn. Finally, adding these subframe connectors, along with the front trut bar, will lower the car's CG (center of gravity) which is what is truly important in suspension design.
So, to sum up, the whole car twists along the axis in the the car from front to rear, perpendicular to the plane which intersects the pillars between the front and rear doors.
I hope this makes sense. I'm sure someone will disagree, but I buy the explanation, and its much cheaper than Koni's all the way around.
The subframe connectors get rid of this phenomenom by tying the front of the car to the rear of the car and significantly decreasing the flex (assuming the subframe connectors are welded correctly and do not flex) As you can imagine, there is a lot of force that these must resist during cornering, so they must be extremely strong and welded extremely well, or they can fail.
I do Solo race my Contour, and these are a must for racing. If you dont race, then this is purely a for fun buy in my opinion.
Anyways, I AM IN FOR SURE AT 150.00!!!!
