Refund policy

REFUND AND WARRANTY POLICY — CTS (CAR TUNING STAR)

Last updated: July 13, 2026

SUMMARY

CTS does not offer refunds of any kind. All of our harnesses are built
under controlled processes of cutting, crimping with pull-test and pin-to-pin
continuity verification, and leave the laboratory with a quality inspection
certificate (QC). If a product presents a manufacturing defect, we replace it
with another at no cost, under the warranty described below.

1. NO REFUNDS

We do not accept returns or issue refunds for change of mind, purchase
by mistake, incompatibility with configurations other than those indicated in the
product description, or any other reason unrelated to a manufacturing
defect. Before buying, verify the compatibility of your engine, ECM and
cab with our technical team via WhatsApp (+1 346-340-4684) — we confirm
compatibility free of charge and with no obligation.

2. 12-MONTH WARRANTY AGAINST MANUFACTURING DEFECTS

All of our harnesses carry a 12-month warranty against manufacturing
defects, counted from the ship date. If within that period the
product presents a failure attributable to its manufacturing (continuity, crimping,
terminals, materials), we replace it with a new or repaired unit of
equal specification, at no cost to you.

3. PRODUCT RECEIVED DEFECTIVE OR DAMAGED IN TRANSIT

Inspect your order upon receipt. If it arrives with a defect or with
shipping damage, contact us within the first 48 hours with:
• Order number
• Serial number / SKU marked on the harness
• Photos of the product and the packaging

We process the replacement at no cost once the case is verified.

4. WHAT THE WARRANTY DOES NOT COVER

• Damage from incorrect installation or connections outside the provided diagram
• Modifications, cuts or splices made to the harness by third parties
• Damage caused by external failures: defective ECM, sensors, vehicle short
  circuits, overvoltage or reversed polarity
• Wear from extreme operating conditions not disclosed
• Products purchased outside official CTS channels

5. WARRANTY CLAIM PROCESS

1) Message us on WhatsApp (+1 346-340-4684) or email (info@cartuningstar.com)
   with your order number, serial number and a description of the failure, along with
   photos or video.
2) Our technical team evaluates the case; we may ask for additional evidence
   (continuity measurements, photos of the installation).
3) If the manufacturing defect is confirmed, CTS ships you the replacement
   unit. We may require the return of the defective unit; in that
   case CTS provides the prepaid shipping label.

6. CONSUMER RIGHTS

This policy does not limit the non-waivable rights that the applicable
legislation of your country or state grants you as a consumer.

CTS - Houston Lab · 12617 Ticonderoga Rd, Houston, TX 77044, United States
Tel: +1 833-451-2265 · WhatsApp: +1 346-340-4684 · info@cartuningstar.com