For customer convenience and security, you can now submit payment to us using your Visa, Mastercard or Discover online any time you wish. Credit or debit cards gladly accepted! We can email your invoice to you along with the link for making a secure payment. This can save you an expensive phone call if you're overseas or inconvenience if you're in another time zone (we're Pacific time). Just email web@fuelinjectionent.com to request a PDF invoice and the magic payment URL!