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Originally Posted by momo3605
Hey guys,
So I noticed there was an absence of dinan information running around this thread, so I wanted to ask if anyone had the dinan tune, or if anyone from ESS knows the difference between the two. I'm especially intrigued since it's the cheapest tune available and it would be covered under warranty.
Thanks!
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I had two Dinan tunes and now a ESS tune.
First off, the Dinan tune is not covered under the BMW warranty. Dinan has its own warranty that replaces the BMW one. Depending on the dealership and your SA and tech this can be a hassle if you need to use it.
In terms of performance it is hard for me to make a comparison since I added the ESS tune when I got the blower. But I had a couple of issues with the Dinan tune during cold start-ups... it would through a CEL code from time to time. Never gotten a code with the ESS tune.
Last, the ESS tune allows me to pass inspection with the cat-less x-pipe. In NY you'll pass with only one stored fault code. A cat less system (even with a tune) will normally store two codes, making it impossible to pass.
So I say ESS all the way.
Hope that helps.