is Rentech the best tune??
MBWorld Fanatic!
Joined: Jul 2009
Posts: 6,677
Likes: 4
From: Los Angeles
C63
There is no such thing as a "best tune".
Is Renntech a good tuner? Yes.
Are there other tunes that have proven results? Yes.
This is a difficult question to answer, my advice would be to do some research. People with different tunes will give you different answers.
Is Renntech a good tuner? Yes.
Are there other tunes that have proven results? Yes.
This is a difficult question to answer, my advice would be to do some research. People with different tunes will give you different answers.
Super Member
Joined: Oct 2007
Posts: 730
Likes: 9
From: The Beach
2012 C63 Purpose built race car, 2015 CLS 63 S, 2016 GLA45, 2017 GTS
Here is the conclusion I came to:
You find a company that you trust and that will stand behind their tune. I narrowed it down to 3 that I considered solid.
_AMG_ is an OE guy and I went Renntech and I'm sure he's as happy as I am...
MBWorld Fanatic!
Joined: Jul 2009
Posts: 6,677
Likes: 4
From: Los Angeles
C63
I did a lot of research on this that started with a thread that got a little out of hand. _AMG_ you were there...
Here is the conclusion I came to:
You find a company that you trust and that will stand behind their tune. I narrowed it down to 3 that I considered solid.
_AMG_ is an OE guy and I went Renntech and I'm sure he's as happy as I am...
Here is the conclusion I came to:
You find a company that you trust and that will stand behind their tune. I narrowed it down to 3 that I considered solid.
_AMG_ is an OE guy and I went Renntech and I'm sure he's as happy as I am...
As long as your happy with which ever tuner you go with then that's all that matters.
Renntech has done an amazing job with these M157 monsters!
MBWorld Fanatic!
Joined: Mar 2007
Posts: 1,137
Likes: 5
From: Sherman Oaks, CA
06 CLS55 w/ P030, 05 Jag S Type R, 05 TBird-68 Dodge Charger R/T-440 w/4speed I'm original owner
From Eli 55 plug/tune issue be somewhat wiser to consider a tune:
1. Does not break the seal on the ECU
2. MB Star Diagnostic is not locked out of ECU
3. Does not push the Engine to its limits (engine should last 150K mi)
4. ECU can return to stock (need company to be around for at least 5 yrs)
4. Warranty (read the fine print)
1. Does not break the seal on the ECU
2. MB Star Diagnostic is not locked out of ECU
3. Does not push the Engine to its limits (engine should last 150K mi)
4. ECU can return to stock (need company to be around for at least 5 yrs)
4. Warranty (read the fine print)
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Super Member
Joined: Oct 2007
Posts: 730
Likes: 9
From: The Beach
2012 C63 Purpose built race car, 2015 CLS 63 S, 2016 GLA45, 2017 GTS
From Eli 55 plug/tune issue be somewhat wiser to consider a tune:
1. Does not break the seal on the ECU
2. MB Star Diagnostic is not locked out of ECU
3. Does not push the Engine to its limits (engine should last 150K mi)
4. ECU can return to stock (need company to be around for at least 5 yrs)
4. Warranty (read the fine print)
1. Does not break the seal on the ECU
2. MB Star Diagnostic is not locked out of ECU
3. Does not push the Engine to its limits (engine should last 150K mi)
4. ECU can return to stock (need company to be around for at least 5 yrs)
4. Warranty (read the fine print)
As far as the other points as it relates to the ECU I can add this:
I brought my car into the dealer, after the Renntech tune, and they put her through star diagnostics. It was in fact a bad spark plug and they fixed it under warranty. I had no issues whatsoever.
Also - We all know our beloved CLS is one fat *ss biatch to get moving but with a tune you'll run side by side with most of the best...until you have to turn anyway...
I'll be doing SBS at Willow in a couple of weeks. Will post videos of what AMG + Renntech can do...
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MBWorld Fanatic!
Joined: May 2009
Posts: 1,484
Likes: 13
From: Abu Dhabi
C218 CLS63TT PP Edition1, W213 E63S
From Eli 55 plug/tune issue be somewhat wiser to consider a tune:
1. Does not break the seal on the ECU
2. MB Star Diagnostic is not locked out of ECU
3. Does not push the Engine to its limits (engine should last 150K mi)
4. ECU can return to stock (need company to be around for at least 5 yrs)
4. Warranty (read the fine print)
1. Does not break the seal on the ECU
2. MB Star Diagnostic is not locked out of ECU
3. Does not push the Engine to its limits (engine should last 150K mi)
4. ECU can return to stock (need company to be around for at least 5 yrs)
4. Warranty (read the fine print)
MBWorld Fanatic!
Joined: May 2009
Posts: 1,484
Likes: 13
From: Abu Dhabi
C218 CLS63TT PP Edition1, W213 E63S
Ali's time with WOT is something that would be very hard to match so I'd say he pushed it to the extremes.
As far as the other points as it relates to the ECU I can add this:
I brought my car into the dealer, after the Renntech tune, and they put her through star diagnostics. It was in fact a bad spark plug and they fixed it under warranty. I had no issues whatsoever.
Also - We all know our beloved CLS is one fat *ss biatch to get moving but with a tune you'll run side by side with most of the best...until you have to turn anyway...
I'll be doing SBS at Willow in a couple of weeks. Will post videos of what AMG + Renntech can do...
As far as the other points as it relates to the ECU I can add this:
I brought my car into the dealer, after the Renntech tune, and they put her through star diagnostics. It was in fact a bad spark plug and they fixed it under warranty. I had no issues whatsoever.
Also - We all know our beloved CLS is one fat *ss biatch to get moving but with a tune you'll run side by side with most of the best...until you have to turn anyway...
I'll be doing SBS at Willow in a couple of weeks. Will post videos of what AMG + Renntech can do...
thats so true, and i will keep driving it hard, i bought it to enjoy it and i tuned it to smoke it
i am really thinking of adding a large H/E now for long WOTs
Super Member
Joined: Oct 2007
Posts: 730
Likes: 9
From: The Beach
2012 C63 Purpose built race car, 2015 CLS 63 S, 2016 GLA45, 2017 GTS
Thats more of a question than a statement
MBWorld Fanatic!
Joined: May 2009
Posts: 1,484
Likes: 13
From: Abu Dhabi
C218 CLS63TT PP Edition1, W213 E63S
Super Member
Joined: Jul 2009
Posts: 520
Likes: 2
From: Toronto
2014 Lotus Evora S
https://mbworld.org/forums/c63-amg-w...isible-mb.html
Super Member
Joined: Oct 2007
Posts: 730
Likes: 9
From: The Beach
2012 C63 Purpose built race car, 2015 CLS 63 S, 2016 GLA45, 2017 GTS
You may want to read my thread on this topic...it's not only true for Kleemann BTW...
https://mbworld.org/forums/c63-amg-w...isible-mb.html
https://mbworld.org/forums/c63-amg-w...isible-mb.html
Personally though I have no concerns. I either mod my favorite car and take my chances or I spend at least 50K more on a car that comes with the same performance. So the way I see it, until I blow my engine, I'm ahead...
And who am I kidding...I would tune the more expensive car too...
Super Member
Joined: Oct 2007
Posts: 730
Likes: 9
From: The Beach
2012 C63 Purpose built race car, 2015 CLS 63 S, 2016 GLA45, 2017 GTS
Senior Member
Joined: Aug 2008
Posts: 355
Likes: 1
From: Chicagoland
12 CLS63
Good stuff. Thank you.
Personally though I have no concerns. I either mod my favorite car and take my chances or I spend at least 50K more on a car that comes with the same performance. So the way I see it, until I blow my engine, I'm ahead...
And who am I kidding...I would tune the more expensive car too...
Personally though I have no concerns. I either mod my favorite car and take my chances or I spend at least 50K more on a car that comes with the same performance. So the way I see it, until I blow my engine, I'm ahead...
And who am I kidding...I would tune the more expensive car too...
Super Member
Joined: Oct 2007
Posts: 730
Likes: 9
From: The Beach
2012 C63 Purpose built race car, 2015 CLS 63 S, 2016 GLA45, 2017 GTS
...what the hell happened from the concept drawing early on!Sooooo glad AMG did it right on the 218!
We two peas in a pod or what Ajag...
