Will these work with my stock wheel studs, or do I need extended studs?

70mm length is designed for extended studs on lowered or custom setups. Stock studs may not have enough thread engagement — measure your stud length before ordering. If your studs are factory length, contact us with your measurements.

What's the difference between open-end and closed-end lug nuts?

Open-end nuts have a gap at the top, so they clear custom wheels with deeper offsets and low-profile designs. Closed-end nuts surround the stud completely. Pick open-end if your wheels fit tight around factory nuts.

Do I need to torque these to a specific number?

Refer to your vehicle's service manual for the correct torque specification — it varies by make and model. Use a calibrated torque wrench to ensure even clamping across all four corners.