ECS is my go to for anything BMW ECS is my go to for anything BMW. The parts are generally reasonably priced, some great deals come around, and you can get some really quality products. Their staff is ALWAYS helpful with questions and guidance. Never been steered wrong. I get parts for my 1985 535i, 2007 Z4MC, 2007 X3 3.0si, and the 2014 X5 xDrive35i - so their continued support of old and new cars is really important to me.

Great Customer Service Had an issue with wrong rotors and ECS made it right without me even asking. Their selector showed rotors that did not mention vented or not. When I received them and took my mine apart mine were vented but 5he ones ordered were not. I called up and they said, don’t worry we will get the correct ones to and they did.

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.

Nothing about this transaction went… Nothing about this transaction went well. Ended up buying elsewhere, saving $300+, plus free overnight shipping. Weekend staff online worthless to solve issues. update; BS. I was asking why my payment was not processing, why I had no bonus points, why I could not use the $25 off (which processed the last time I tried) and why I always have trouble signing in... you should at least have read the text. But guess what, I'll probably still have to use y'all since you have bought everyone who supplies BMW parts, etc.

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