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If you have a damaged product, or it does not meet your expectations, return the new/unused item in the original box prepaid within 30 days with a copy of the invoice and Return Form for a refund or exchange. (requires Adobe Reader)

  • Unopened Items - We will refund you for any unopened item for any reason (shipping not included) within 30 days of the original purchase date.

  • Opened items must be in sellable (as-new) condition, in original packaging with the packing slip, with any/all warranty cards, manuals and accessories within 30 days of the original purchase date.

  • You will be responsible for the return shipping costs of non-defective items.

  • After 20 days all returns are subject to a 20% restocking fee. If you fail to return the item within 20 days of receiving it you will be charged a 20% restocking fee.

  • If we shipped you the wrong product by mistake, a Return Shipping label will be issued to return the item.

  • Items claimed to be defective that are found not to have the reported defect will be returned to you. You will be charged for the return shipping cost.

  • Items that have been installed, modified, or are clearly not in sellable (as-new) condition will be returned to you and you will be charged the return shipping cost.

  • Refused Orders - After an order is shipped, if you decide to not accept it, the package will automatically be sent back to us.  We will refund your credit card for the amount of the product(s) on the invoice minus all applicable shipping and credit card processing charges.  This includes the shipping charges for the package being sent back to us. The credit card processing charges are 6%. When we charge your card we incur a 3% fee and when we refund your card we incur another 3% fee from our merchant (credit card) service.

  • Special Orders - We do no accept and returns on non-standard items that have been manufactured or modified to a specific customer's needs. Any cancellation of a special order item(s) prior to that item(s) being shipped is subject to a 6% fee. This is the same credit card processing costs as mentioned above. 

To make a return, simply call 603-497-2281 or email us at SPAM Prevention - Please type in this email address regarding the item you would like to return.
1) We will issue you an RMA# (Return Merchandise Authorization Number) to you so you can send the item to us.
2) Simply complete the
Return Form, place it inside the box the item is being returned in, along with a copy of your original receipt, and clearly write the RMA# on the outside of the package.
Send the package pre-paid (UPS, Federal Express, or US Postal Service INSURED) to: DieselManor, Attn: Returns, 61 Peppermint Street, Goffstown, NH 03045.
4) Please make sure the box and contents are securely packaged.

Downloadable Return Form
Return Form

We do not accept returns on the following:
  • Any non-standard item or item that is manufactured or modified to a specific customer's needs.

  • Any item without a copy of the original invoice, return form, and RMA# unless other special arrangements have been made.

  • Exhaust systems, down pipes, or other exhaust component after it has been installed.

  • Any electronic components or parts if they have been installed or used on the vehicle, this includes any power enhancing product, gauges, lighting products, etc.

  • Any product that has a manufacturers seal or label if it has been opened.

  • Any liquid or aerosol product after it has been used or the manufacturers seal has been broken.

  • Any return after 30 days.

  • Items damaged due to improper installation, abuse, misuse, or neglect will not be eligible for replacement or accepted for return.

  • Items damaged due to negligent opening (cuts, scratches, punctured bottles). Please be careful when opening up containers with a blade.
    Note: We do not accept damaged, modified, or otherwise non-sellable items.  These products will be returned back to you and you will be charged the appropriate return shipping costs.

  • Returns not from the original purchaser.

  • By sending in your return you agree to these terms.

After you receive your order please check thoroughly that all components are what you ordered and look to be in working order. All of our shipments are carefully packaged. If you have an installation scheduled for your products, please make sure you place your order well in advance to allow for the possibility of a return to occur and/or allow us to get the correct item(s) to you via ground shipping.  We always recommend that you have your products "in hand" well in advance of your scheduled installation. This allows you time to verify that all of the products you ordered are correct and that you have everything needed. However unlikely, sometimes products do get damaged while in transit. Under no circumstances will DieselManor, Inc. be liable for replacement costs that the end user or customer purchased to complete the installation. If you decide to replace any of the products purchased from DieselManor, Inc. we will not be held responsible for any reimbursement thereof. Under no circumstances will DieselManor, Inc. be liable for any labor charged or travel time incurred in diagnosis for defects, removal, or reinstallation of any of the products we sell or any other contingent expenses. Under no circumstances will DieselManor, Inc. be liable for any damages or expenses incurred by reason of the use or sale of any of the items we have sold.

For information regarding our Shipping Policies, including delivery times and missing packages please see out Shipping Page.

If you have any questions regarding this policy please do not hesitate to give us a call.  We make this return policy well known before you place your order.  By placing your order with us you agree to these terms.  If this return policy is not acceptable for any reason please return your products immediately for a full refund.


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