Yes, it is safe to cut wheel studs for Subaru WRX spacers as long as there is still enough thread length. Bolt-on wheel spacers come with a new set of wheel studs and lug nuts. Since the spacer is secured by the OEM studs, and the wheel is fastened by the provided studs of the wheel spacer, grinding OEM studs to fit Subaru WRX spacers will not shorten the thread engagement and weaken the strength.
The general rule of thumb is that you need enough thread length as the diameter of the WRX wheel stud shows. For instance, an M12 wheel stud would need 12mm threads to ensure a safe engagement. If you want to cut studs for Subaru WRX spacers, it is recommended to get this project done in a reputable tire shop, or under the guidance of a professional, then you are good to go.
Do I Need Longer Studs for Subaru WRX Spacers?
If you get slip-on Subaru WRX spacers, you are likely to need longer wheel studs to achieve a safe thread engagement. For instance, if the thread length of your OE wheel studs is 15mm and you get 10mm Subaru wheel spacers installed, then you would need longer wheel studs with 25mm thread length (stock stud length + spacer thickness = extended wheel stud length).
BONOSS provides ISO grade 12.9 wheel studs to safely secure your Subaru WRX spacers. These high-strength studs are approved by SGS and TÜV. And the performance results are great: tensile strength ≥ 1,220 MPa; ultimate tensile load ≥ 152,000 N; proof load ≥ 121,000 N. These SGS TÜV-certified wheel studs are completely safe to use. If you need longer wheel studs for your new Subaru WRX spacers, you can buy them online at the BONOSS website.
What Kind of Subaru WRX Spacers Can I Trust?
Brands that focus on quality and performance are very strict in raw materials and manufacturing processes. BONOSS Subaru WRX spacers are made of high-strength 6061-T6 and 7075-T6 aluminum alloy materials. After continuous tons of pressure, the forging process eliminates internal voids/gas pockets that weaken metal parts, maximizing fatigue resistance and increasing impact strength. You don’t need to worry about any loose issues.
Particularly, the provided wheel studs and lug nuts applied the superior Dacromet surface treatment process. The Dacromet surface treatment offers excellent protection for wheel studs and lug nuts. And because of the general avoidance of hydrogen embrittlement, it is an excellent choice for the coating of connection elements and safety components in automotive components and accessories. So, you can trust BONOSS Subaru WRX spacers.