The whole event runs from August 3 to August 14 (PST Time).

Sitewide Discount

• 15% OFF sitewide throughout the whole event: Code THX15
• Flash Sale (Aug 10 – Aug 11 only): 17% OFF sitewide, Code THX17

Clearance Items Discount

• 20% OFF for selected clearance products: Code CL20. It can be combined with THX15 in one order for different products.

Discount codes cannot be stacked and applied to the same single item. However, you can enter multiple different codes in one single order. Each individual product will only apply the highest applicable discount code. It means you can Enter Code: THX15, CL15, CL20 togethter.

Orders over $300 will automatically add a free gift to your cart, limited to stock on hand.Free gifts can be combined with sitewide discounts. Simply enter two codes at checkout: THX15 + FREE or THX15 + FREETS.You may replace THX15 with your exclusive higher discount code.

• All items except tuners: Shipped within 24 hours after payment, delivered in 3–7 business days.
• Tuner products: Will be shipped 2 business days later than regular items, delivery lead time remains 3–7 business days after dispatch.

Order cancellation or address modification is acceptable before shipment. If the order has already been dispatched, please follow our return & exchange policy to apply for after-sales service. Discount will be recalculated for partial returns.

• Double-check the code spelling
• Confirm your order falls within the valid PST promotion period (especially THX17 flash sale only on Aug 10–11);
• Verify the product category matches (CL codes only for clearance goods);
• Clear browser cache or switch devices to try checkout again.