2026 BMW M3 Trunk Mat M4 Thunder M3 Thunder Edition Trunk M80 G83 G82 Modification

Accessories & steering wheels: delivered in 8–17 days by air after your order is confirmed.

Forged rims, body kits & other large items: delivery time depends on the shipping method you choose at checkout. The estimate for each option is shown at checkout and in your order confirmation email.

Every order gets a tracking code by email once it ships. Delivery times are estimates and can be affected by customs or public holidays in China.

Full shipping policy

• Request a return within 14 days of receiving your item by emailing contact@umpartschina.com. Items sent back without an approved request can't be accepted.
• Items must be unused, in their original packaging, with proof of purchase.
• Return shipping is paid by the customer.
• Made-to-order and personalised items (for example custom steering wheels, forged rims and personalised plates) and sale items can't be returned.
• Damaged or wrong item? Contact us straight away with photos of the box, the item and the shipping label.

Approved refunds go back to your original payment method within 10 business days. Full refund policy