Returns Policy

Thanks for choosing Daysyore. All of our Daysyore products are strictly tested by our quality inspection team before shipment, if you find any quality issue, please email us at support@daysyore.com

You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

The refund will be processed within 7 working days after the receipt and validation of return. Please check your account then.

Shipping

Do you ship internationally?

NO, We have our own warehouse in the United States and we only ship to the United States.

How much is the shipping?

Free shipping on all items

Shipping method?

UPS and FEDEX

Shipping Time?

Processing time: 1-3 Business days

Shipping time: US: 3-5 Business days

Will this fit my car?

The product fits 2.25'' inlet / outlet, and there is a compatibility list as a guide on the page of Vehicle Fitment for you. If you are still uncertain, please contact with the customer service.

O₂ sensor plug direction? pre cat or post cat?

The cat isn't directional, so you can flip it around either way, as long as the O₂ sensor plug is conveniently located with the O₂ sensor.

Is it approved by California?

Sorry, no. It is prohibited from sale in California, Colorado, Maine, and New York due to State emissions regulations.

Welded or flanged?

Just installed to existing exhaust system, both ends may require cutting and / or welding, please better ask for professional assistance.

What to do if check engine light comes on?

Ensure that the gas and oil caps are on tight and that the oil dipstick is seated correctly. If the light remains on, it could be triggered by a faulty oxygen sensor, wrong installation of catalytic converter, bad spark plugs, malfunctioning thermostat or bad mass air flow sensor. If none of the above is true, please contact with the customer service ASAP.