Any modification such as this that requires welding isn't just pocket change. There is labor intensive work required by the shop for any subframe installation. But for what we received, we were delighted to pay the bill when it was due!
Custom Performance did all the welding to install these parts. They are custom fit to each car so they must be welded while the car is at their NC shop. The install required them have the car for 2 full days to perform all the work we wanted. We had the subframe connectors, crossbraces, and the jacking rails installed for the best combination on our project car.
One of the key points to installing any subframe connector, is having the car properly lifted off the ground during the initial measurements. The car must be resting in a position that imitates it's stance as if it were sitting on all 4 wheels. As you can see in the photos, the proper way to do this is to set the rear axle on jackstands, and the front A-arms on stands which sets the car as close as possible to a true stance. This could also be accomplished on a lift that allows the cars to rest on it's wheels.
Since our convertible came with the lousy factory connectors in place, those were ditched right away. They are flimsy and provide no real support for the car when under heavy stress. The new Custom Performance connectors were test-fitted in place before being removed to be assembled with the jacking rails. Everything is welded off the car so that a nice tidy weld can be created for the ultimate clean look. Black paint is applied to the parts to prevent rust. Once the assembly is finished and cooled, it is then mounted to the undercarriage of the car and welded into place. This ensures that the car is firmly attached to the connectors and no flexing can occur. The crossbraces are also tied to the seat frames from under the car for even more lateral support.
We also opted to get the jacking rails installed at the same time. These are the shorter bars you see attached to the assembly above. These rails provide an easy access place to jack your car from many different points. They are welded into the subframe assembly and securely mounted for safe jacking. Jacking up the car is now a breeze and we don't have to worry about damaging the stock jacking location anymore. As much as we get under the car for oil changes, part installs, and even for cleaning purposes, this has saved us a lot of time. We definitely recommend the jacking rails if you get the other items done. It's only a $100 more and well worth the addition.
We were absolutely amazed at the quality of construction. We were skeptical at first on how this could assist our convertible but now that they are installed, the difference is amazing. The car doesn't flex going over driveway entrances, it doesn't squeak and moan over angled corners or turns where all 4 wheels aren't flat. And the performance of the car has noticeably increased in hard cornering. In drag racing, under full throttle, there is no tendency for the car to twist from the horsepower forces (especially if you are using slicks). Those are forces that over time, can cause the car to have permanent issues with body panel alignment and chassis weakening. We are now comfortable driving the car hard with no worries in that department. It is also comforting to know there is extra strength in the framework of the car in the event of an accident. This is always a great comment to add when trying to sell your car as well.
If you'd like to consult with Custom Performance to have this done to your Mustang, feel free to call them at 704-454-5220. Or you can email them directly at email@example.com. They also have a website for any more information. Click HERE to go to their webpage.
If you have any questions about this article, email firstname.lastname@example.org.
Written by: Steve Shrader, YMR