Weistec, Renntech or Eurocharged Tune
I am looking to get a tune on my C63 and going over all the posts I'm not sure which vendor to choose. I'm not looking to restart discussions about who screwed who and all that crap just an honest recommendation.
Renntech is known for their quality but prices are almost double the other vendors.
Weistec is somewhat local and they installed my LSD in the past, I find them hard to reach over the phone but what scares me the most is the posts about their internal legal issues and potential problems with future support.
Eurocharged seems to popular but I know nothing about them.
Thanks in advance




Weistec = leaders in the M156, have to send ECU to them to tune (bench), only one tune and once it's tuned it's tuned for good
Renntech = ??
Feel free to call me and ask any questions. I'll be glad to help you out and spend time.
Thanks
-Phil
713-462-1600
also are there any potential issues with multiple writes to the ECU? (Although the car not being my DD I would leave it in crazy mode)
Any significant differences between them as far as engine / AFR safety?
Weistec = leaders in the M156, have to send ECU to them to tune (bench), only one tune and once it's tuned it's tuned for good
Renntech = ??
also are there any potential issues with multiple writes to the ECU? (Although the car not being my DD I would leave it in crazy mode)
Any significant differences between them as far as engine / AFR safety?
It is a pretty easy/smooth process.
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I just recently had a C63 and an E63 tuned from them. Amazing work, amazing people and you will be extremely satisfied




Since I posted I learned of at least four other companies, I'm sure all of them are great a few even reached out right away which I really appreciate being in sales myself.
I can say that my experience with Eurocharged will keep me from ever looking into another tuner so long as I am tuning cars. Great group of people, easy install, problem free, noticeable gains! Was everything they said it was and I expected.





