Great customer service hassle free Great customer service hassle free. My package showed up missing two small parts, was shipped replacements the same day. Pretty certain that FedEx was to blame, but ECS didn't make me go through that dreadful claim process. Very thankful for the customer service.

Hard to find OEM+ oil for my b6 Audi S4… Hard to find OEM+ oil for my b6 Audi S4 avant, thank you.

Great service and fair pricing Great service and fair pricing. Love the lifetime warranty.

Don't rely on ECS Tuning application guide Based upon website guidance, I ordered an auxiliary input wiring harness for my 2003 Mercedes C240. I received it, decided to do some online verification before opening the package. I learned this harness wasn't compatible with my car's wiring. After a lot of hassles I was authorized to return it. I paid shipping both ways for a part incorrect for my car, despite the website claim it would work.

Garbage parts Bad customer service Garbage parts. Defective and cheap spoiler. Looks like junk on the vehicle. If your past the return window good luck getting a replacement! Their lifetime warranty program is JOKE. You basically have to pay for the defective part a 2nd time to replace it and all they do when they get the part back is give you a in store credit. I will NEVER USE THIS COMPANY AGAIN!