Will this pipe work with my turbo setup, or do I need adapters?

This pipe is universal and sized at 3.00" bore. If your turbo outlet and intercooler inlet are both 3.00", it'll slip right on. Different bore sizes or connection types will need adapters.

Do I need to seal the ends before installing this?

Once you clamp it to your turbo outlet and intercooler inlet, the connection is sealed by your hose clamps. Don't need sealant or tape—just tight clamps on both ends.

Can I trim or modify this pipe to fit my engine bay?

Aluminum pipe can be cut with a hacksaw or bandsaw, but you'll need to deburr the cut edge and may want to sand/seal it to prevent corrosion at the cut. Test-fit before cutting.