GL450 engine is shared with



http://www.renntechmercedes.com/www/node/1056
I wouldn't "assume" that the only uptune is the ECU, that's kindof a easy thing we would like to think - and for a outfit charging $2700 for a $400 tune, I feel Renntech's a bit overstating.
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I wouldn't "assume" that the only uptune is the ECU, that's kindof a easy thing we would like to think - and for a outfit charging $2700 for a $400 tune, I feel Renntech's a bit overstating.
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Thanks!
https://mbworld.org/forums/gl-class-...-60-video.html
Possibly by Fall there will be a legitimate tune available from a professional Euro house..
Oh, by the way, everybody has checked with their servicing dealer to see wheter or not the dealer won't erase the mod tune during service ?
At any rate, I'm happy with the tune that cost less than 1k, if others want to wait for the "superior" "$500" tune, by all means do.
A quick check of the aforementioned tuners looking at the previous 5.5 engine (non-turbo) I can't find a tune that costs less than $595. If you want to wait 2 years for the price to drop go ahead, by that time I will nearly be at the end of my lease and enjoyed my poor man's gl63 since week one.
http://www.consumer.ftc.gov/articles...ne-maintenance
Mercedes would have to prove that the "issue" is a result of the tune in order to deny you warranty work.
Last edited by derek; Feb 5, 2013 at 10:32 PM.
I asked my local service manager. He said he hasn't had any experience of adverse outcomes, and noted he tunes his personal cars.
I'm still holding off until I see some verified dyno charts.
I wouldn't "assume" that the only uptune is the ECU, that's kindof a easy thing we would like to think - and for a outfit charging $2700 for a $400 tune, I feel Renntech's a bit overstating.
Great point. I am curious to see real world performance test result with the tune vs. just dyno figures.









