Their SSL cert expired. You can still browse the site, just have to tell browser to ignore the expired cert. but personally wouldn't buy anything until their cert is renewed.
works for me :iono:
Last evening ECS Tuning became unresponsive and went offline. When this occurred the domain began to redirect to an unaffiliated website. We apologize for the temporary disruption and we are currently working to resolve the redirect issue. Please contact (customerservice@ECStuning.com / sales@ECStuning.com) if you need further assistance.