Refund policy

Clear return procedures matter to us and to your peace of mind. The guidelines below explain how returns work at Dynamic Diesels.

Order cancellation

  • Immediate order processing: Once an order is placed, it is processed immediately and a shipping label is generated and paid for. Because of this, orders cannot be cancelled after purchase.
  • Order already shipped? If you change your mind after your order has been dispatched but before it arrives, please wait for delivery. Once received, you may request a return according to this policy. If you contact us before the product has left our facility, we may try to stop the shipment, but shipping costs are non-refundable. Please be sure of your order before you complete checkout. If you have questions about a product, email support@dynamicdiesels.com or call 1-877-600-5667.

How to start a return

Every return requires a Return Merchandise Authorization (RMA) issued in advance. To request an RMA, email support@dynamicdiesels.com or call 1-877-600-5667 with your order number. We cannot process a return without a valid RMA.

All returns must use our company-issued prepaid return label. Returns sent without a valid RMA and our prepaid label — including refused deliveries or customer-arranged shipping — cannot be accepted, refunded, or exchanged.

A. Tuners

  • Final sale: All custom tuning (including devices and tune files) is final sale and will not be accepted for return or refund unless the device or tune is proven faulty by the manufacturer.
  • If your tuner is faulty: You have 90 days from the date of delivery to start a manufacturer warranty claim. We will provide a prepaid return label to send the faulty tuner back to us.
  • Other return reasons: If a non-fault tuner return is approved, you will be charged the cost of the return label plus a 20–25% restocking fee based on the condition of the returned tuner. Third-party return labels are not accepted. All return labels must be provided by Dynamic Diesels.

B. Exhausts, race pipes, turbochargers, and EGR kits

  • Final sale: Exhausts, race pipes, turbochargers, and EGR kits are final sale. We do not accept change-of-mind returns, exchanges, or refunds on these items.
  • Damaged or incorrect exhausts and race pipes: If your item arrives damaged, we will send a replacement part or, in severe cases, a new product. If you receive the wrong item, contact us right away and we will make it right.
  • Damaged or incorrect EGR kits: If your EGR kit arrives damaged or incomplete, we will send the necessary replacement parts. If you receive the wrong kit, we will dispatch the correct one and provide a prepaid return label for the incorrect item.
  • EGR returns for other reasons: If an EGR return not related to damage is approved, you must use our provided return label (the cost is deducted from your refund) and a 25% restocking fee applies, which may increase based on the product’s condition.

Refunds and credits

  • Inspection: All returned items are inspected before we process a refund, gift card, or exchange.
  • Gift card option: Instead of a conventional refund, you may choose a Dynamic Diesels gift card, which can be used on future purchases.

If you have questions about this policy, email support@dynamicdiesels.com or call 1-877-600-5667.