Will this bolt straight into my car without custom brackets or modifications?

Yes. This radiator mounts at the factory support points with no drilling or welding. You'll use the OEM mounting hardware already in your car.

Do I need to flush my cooling system before installing this radiator?

Drain your existing coolant before swap-out. Fresh coolant after installation is smart practice for any radiator replacement — it keeps your new core clean and extends its lifespan.

Can I use this on either V6 or V8, or is it model-specific?

This radiator is engineered to work with both the V6 and V8 versions of your platform. Cooling circuit layout matches both engine configurations.