I am selling my unused VinceBar Epoxy Rivet kit. Will come with everything you need to install minus misc tools like a rivet gun, grinder, etc.
Asking $300 plus shipping
This item is used for reinforcing and preventing "subframe" cracks and tears. It doesn't matter how hard or soft you drive your E46, it WILL develop cracks simply due to the design of the RACP and how the car transmits torque and forces to the mounting points. Used in combination with reinforcement plates, your E46 should last longer than you with this kit installed.
This particular kit does not require welding and is very DIY friendly. Instead, it uses a combination of stainless STEEL rivets and a very strong epoxy which gives a higher contact area for distributing the force to the chassis welds than welding. If you wish, you can still weld it...
My reason for selling is that my project has taken a much different path.