Fitment, Order & Build Support
Need help before ordering? Contact Extreme Performance for vehicle fitment, product selection, shipping, freight, order questions, sandcar builds, or custom fabrication.
- Fitment help: confirm your vehicle, model, year, trim, or required installation hardware.
- Shipping help: questions about UPS Ground, oversized freight, or San Bernardino pickup.
- Build support: discuss Extreme sandcars, cages, suspension, chassis upgrades, or custom fabrication.
- Order support: contact us with your order number for status or product questions.
Phone: (909) 887-8000
Email: info@extremeperformance1.com
Hours: Monday–Friday, 7:00 AM–4:00 PM
Address: 5486 Industrial Parkway, San Bernardino, CA 92407
For oversized items, you can also review our freight shipping and pickup information before contacting us.