Originally Posted by lowflyn
Wrong. These cars benefit from all the bracing you can add. I have this system on my cobra and love it
No, I'm not wrong. My answer may have been a bit incomplete though and your comment does have some truth in it.
They are not really necessary on any street driven or dual purpose street/drag car and there are thousands of Mustangs out there running without them to back up my claim. Therefore IMO they would just add unnecessary weight and stiffness.
They are without a doubt stronger than just sub frame connectors and they add more rigidity to a vehicle, but you have to ask yourself if that's really a good thing in a car you will be driving on the street a lot. Uni-body cars are designed to flex and give a bit to help absorb some of the ride harshness encountered in daily driving. If you remove all of that flex and give, be prepared for a stiffer more uncomfortable ride and the need to service or replace suspension parts more often as they will be worked harder than they were before.
For most people driving on the street, they would never drive aggressively enough on public roadways or on a track often enough to realize any real benefits from them to be able to justify the expense and installation.
However anyone who wishes to do so can certainly choose to install them on their cars.