A: We are manufacturers, so each product can be guaranteed to be a new product assembled in person.
A: There is the model number on the injector body, please check or take a photo and send it to us.
A: If you can't install it successfully, there is no reason to return the replacement.
A: If we have stock, we will ship it in 1-3 days. It will not exceed the delivery date at the latest. In special cases, if we encounter production problems, I will inform you in advance. Do not worry!
A: Please choose "Expedited International Shipping", then we will send you the parcel through DHL, Fedex, or UPS express.