I added the bar that ties the rear shock upper mounts together. They are a quick and easy bolt on with no modifications what so ever. I have the lower control arm to upper control arm braces also installed. I built the brace that ties at the rear of the frame. I can think of no other braces that would stiffen the back.
View attachment 46443View attachment 46444View attachment 46445
I think somewhere in this thread UMI posted that they haven't boxed the frame on their Green Machine autocross car, with no visible signs of distress after several seasons of track use. Just their braces are installed on the car.
GBodyForum is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to amazon.com. Amazon, the Amazon logo, AmazonSupply, and the AmazonSupply logo are trademarks of Amazon.com, Inc. or its affiliates.