Do these headers require any welding or fabrication to fit?

Installation method and any necessary chassis modifications are not specified in the product data. Test-fit before committing to welding or permanent fastening to confirm clearance with your specific chassis and engine combo.

Will the stainless steel need polishing or coating after installation?

Stainless steel resists corrosion naturally, so polish is optional—purely cosmetic. If you want a show finish, mild steel wool and stainless cleaner work well; no special primer or paint needed unless you prefer a custom look.

What about flanges and gaskets—are those included?

The header assembly is confirmed; mounting flanges for engine connection are standard. Gaskets and any additional fasteners should be confirmed at checkout—confirm what's packed before installation day.