Installed an LSA Conversion LT4 supercharger reservoir upgrade kit (version 2) and a BMR Suspension strut tower brace.
The supercharger reservoir adds extra coolant capacity to the system and makes it easier to add coolant and bleed air out of the system. It also looks OEM since it uses a GM coolant reservoir. Its the first kit of this type I've seen that actually looks like it came on the car.
The BMR Suspension strut bar is well made and is one of the few Gen6 Camaro strut bars I've seen that will fit over the factory supercharger. It's not cheap, but is a quality piece.
Two pretty good mods. Here are a few pictures.