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⚠️ VCMTUNER II Backordered

Ordering opens on 7/13/2026 at 9am PST until we sell out. These orders will ship between 7/13/2026 through 7/18/2026. We will open ordering again on 7/20/2026 at 9am PST once this batch is sold out. Ordering is available when the 'add to cart' button is active.

Hours of Operation

Note: We will generally respond to questions by e-mail within 24-48 hours during the business week.  Our offices are closed on Saturdays and Sundays.  

Which Part Fits My Vehicle?

Please review the 'Connector Compatibility' section on our product pages before ordering. To help you find the exact product you need, check our complete supported vehicles guide below:


Order Modifications & Cancellations

To modify or cancel an order, please email both info@vcmtuner.com and office@eastmanresearch.com. Copying both addresses ensures either our early shipping staff or late afternoon staff can intercept the order before it goes out.


Order History & Tracking

If you created a shopify login upon your order, you can login to your account to track and view the status of your order.  You should also have an e-mail with tracking information once a shipping label has been created.

  • Processing Time: We try to ship VCMTUNER orders the same day. For VCMTUNER II orders, tracking numbers are generally provided 24 hours before drop-off at the post office.
  • Missing Tracking: If you haven't received a tracking number, please check your spam folder.
  • "Tracking Not Available": If USPS shows this message, it generally means the mailing label was just printed and the carrier has not yet scanned the item. Please wait 24 hours before reaching out.
  • Canada Shipments: Shipping to Canada has resumed, 10-15% tariffs/handling fees may be in affect depending on shipping provider from USA - > Canada packages.

Returns Policy

https://www.vcmtuner.com/pages/return-policy

Tech Support & Returns

If you have product questions, require technical support, or need to initiate a return (within 30 days of ordering), please email info@vcmtuner.com.

Before sending an e-mail, please see the FAQ section of the website which answers the most common customer questions.

Note: Email responses generally take 24-48 hours. Mondays are our heaviest workload, so replies may not be sent until after 5pm PST.   

For product troubleshooting, please attach picture(s) of the installation of the product under the hood to the 12 battery connection (applicable to VCMTUNER II orders) and the ECT connection (all orders).  For VCMTUNER II, pls including a picture of how the unit is mounted to the battery hold-down post as well.

Return Mailing Address

Please process returns in 6x9 or 6x10 padded bubble mailers (to fit our business postal mailbox). Ensure your name and physical address are on the label.

Eastman Research Inc
ATTN: Returns
3030 Thorntree Dr Ste 11
Chico, CA 95973

Refunds are generally issued within 2 business days of receipt during the standard work week. Returns received on a Friday or over the weekend will be processed the following week.