Do I need to fabricate custom brackets to make this fit?

No. This intercooler mounts at factory points with the hardware provided — no custom brackets or welding needed. Test-fit before finalizing hose routing to your turbo or supercharger setup.

What size inlet and outlet ports does this have?

Port size is not specified in the product listing. Measure your existing turbo or supercharger outlet before ordering, or contact support with your engine setup for a fit confirmation.

Should I paint this before installation?

The intercooler ships ready to install. If you want a custom finish or color match, sand and prime the core before mounting. Standard automotive primer and paint work on the aluminum surfaces.