Will these work on my current wheels without modification?

Depends on your wheel design — open-end nuts fit standard lug holes, but verify your wheels accept this thread pitch and length before ordering. Test-fit one nut on a stud to confirm proper seating.

Do I need any special tools to install these?

No. Open-end design means a standard lug wrench works fine. Hand-tighten first, then use your wrench to seat them fully. Refer to your vehicle's service manual for torque spec.

Can I paint or powder-coat these after purchase?

Blue finish is anodized aluminum — prepping for additional coating requires stripping the existing anodize layer with appropriate media. Not recommended for DIY application without proper equipment.