Not to revive a long dead thread, but I have replaced the exhaust hangers on my '06 XSP 4 times now. I have spoken to borla and I pretty much get no where as well. I'm trying to find metal reinforced hangers now with the hopes that it'll take care of it.
2006 4Runner X-SP
Here is what the embroidery and the other options look like. The truck is basically an SR5 with aesthetic extras. The exhaust is loud at low speeds but is not noticeable except when accelerating. I ended up getting the truck for just a hair over 30k, slightly more expensive...