My original post was deleted during some g1teg.org system maintenance. Here is some information and the pictures I posted before.
The Cusco Strut Tower Brace (306 510 A) is available from heeltoeauto.com:http://www.heeltoeauto.com/cusco-front- ... 0-a.2.html
The Cusco brace is very solid when leaning on it. The adjustalbe screw in the center with two locking nuts does not weaken the structure of the brace. The Cusco brace is made for the Japanese market and the packaging says it is not for use in other countries. It is my first JDM part. [!]
The DC Sports brace is not stocked new anywhere. It flexes easily when pulling it up and down in the center, but the forces are mostly side to side and only up and down to the extent of the shallow angle on the ends of the brace.
After removing the shock tower bracket nuts, two washers are visible embedded in some kind of putty. I left those four washers there and bought four new metric M8 washers to use between the brace the original nuts, if I remember the size correctly. As seen in the first and second pictures there was plenty of room on the bolt for the extra clearance needed for the extra washers and the brace mounting plate.
Here are hacksaw cuts to eliminate interference with the wiper motor cover. The first cut was at the angle that matched the bracket for the DC Sports brace. The second cut should have been the only cut made. It would have been 3/16 of an inch from the edge at the widest part, if I remember correctly, and at the angle that the wiper motor cover makes.
There is no obvious orientation for the short diagonal brace tubes. I'm in the USA, and I put them to the front of the car. In Australia, "thebranded" put them to the rear. A sticker already on the brace can be read right side up with the orientation that I used.
It might be argued that the front bolts will deflect more and should be connected to the bar that goes straight across to eliminate a bending force. The brace is so solid that such a bending force seems insignificant. This is not a three point brace that attaches to the firewall. A string tied taut between the firewall and the center of the brace and a video camera recording of the string during a slalom drive might show how much the brace bends. Does anyone have a GoPro with a thick handle bar mount?
Maybe "thebranded" did it the best way, but I'm leaving mine as it is because I don't want to make another hacksaw cut on the opposite end of the brace. The brace also seemed to line up with the bolts better, and I liked having the main bar further back over the intake plenum with "PGM-FI" framed nicely. Pushing a wire harness away a little was necessary. The motor looks nice naked without the covers and shields on modern cars.