Standard estimated delivery: 7–10 business days total, including approximately 2–3 business days processing and 5–7 business days shipping after dispatch.

Tracking is provided when shipped. Availability, holidays, and carrier delays may affect timing.

Universal valved mufflers require verification of pipe diameter, available mounting space, exhaust routing, and your vehicle's configuration.

Professional exhaust fabrication and installation are strongly recommended. Confirm compatibility before ordering.

Approved returns for unused, uninstalled items in original packaging may be requested within 30 days of delivery.

For approved non-defective returns, the customer pays return shipping and a 15% restocking fee applies. Contact support@kbtuning.shop for authorization before sending anything.

Damaged, defective, or incorrectly supplied items are handled separately in accordance with applicable consumer protection laws.

For suspected manufacturing defects or workmanship concerns, email support@kbtuning.shop with your order number, details, and clear photos or video.

Our team will review the issue and advise on available remedies. Improper installation, misuse, accidents, modifications, and normal wear are generally excluded from manufacturing-defect claims.

Professional installation is recommended. Contact support for any applicable product-specific warranty terms.