pretty much.I take it is way cheaper to install the kit before your car tears?
there are plenty of people now who install the reinforcement kit with industrial grade aircraft epoxy. so no welding or hassle with gas tank. you can even do a preventative application of the epoxy foam that BMW uses in the crevice that the mounting block sit in and it's even easier. i think it's two holes from the top in the trunk compartment and fill per bmw instructions and allow to cure 24hr.