thanks for showing I've changed my mind for gt63s, did a tune by racechip on a45 with no issues but it's pain in the ass to reinstall everytime before service.
Quick question man, I’m looking forward to buying a tune from renntech for my c43, do I have to take it to a shop for them to unlock the ecu? Or as soon as renntech ships me out the OBD Tune, am I able to just plug it right in and download my tune from home? Please let me know hope that makes sense!
Ya so did I until it went blank like I explained. Phoned Renntech they were quit panicked with situation so long story short they are not certified and if you keep it tuned merc will know and warranty void
@blkg35sport If you put it back to stock settings which Renntech offers then you're good. But ya not doing it is always safer and there are a few glitches when you use it
my car says it came with ten tech tune but it feels stock comign from owning a 2016 c43 now i have the 2020 coupe but how do i know it’s rlly activated i felt like it should’ve been gaster
