Ironworks Speed & Kustom has been selling ECU brackets to mount those hard to mount ECU's for about a year now. I wanted to post up some further info on how the brackets are designed to be used and info on how to purchase them.
LS1 ECU bracket - These are made from .090 steel and are laser cut and press broke parts. We powder coated this bracket Orange to make it stand out. All brackets come in bare steel so you can weld on them or weld them in to your project. We sell these brackets for $45.00.
LS2-LS9 ECU bracket - These brackets are made from .090 and .125 steel. We have again powder coated these orange for display purposes. They have a 2.625" leg on the ends that can be trimmed or cut to fit your desired location under the dash or engine compartment location. These sell for $40.00
We also sell brackets to mount the MAST ECU, FAST XFI, BIG STUFF. These all sell for $40.00 each also.