Tunes for the 550
Super Member
Joined: Jan 2017
Posts: 744
Likes: 144
From: Bay Area
W218 Stage 2, E85
To the OP I don't think you can go wrong with any of the listed tuners. I can only speak about OE personally, and I agree with the above! I had excellent customer service, they honored special holiday pricing which is unbeatable even though I got mine at a later time. I also honestly believe that they gave me a little more juice then advertised as well, car pulls like a train! This car is an unbelievable daily driver, and I couldn't imagine driving it without the tune. I am also about 1.5years on the tune and no problems so far.
Good luck
Good luck
I will run mine on the dyno only when I get the Water Methanol Kit installed lol
Junior Member
Joined: Mar 2019
Posts: 35
Likes: 25
From: Central FL
2015 CLS 550 AMG Pkg
After comparing all of the big name tuners (Eurocharged, Pressuretech, Renntech, Weistec, OE Tuning, AMR Performance, AMS Performance) I went with Weistec. All of these companies seem to have great reputations tuning high end luxury cars, however Weistec was my choice for 3 reasons:
- They offer the most horsepower on a stage 1 tune
- They offer more components for the CLS than the others (intakes, anti-surge, 2 step colder spark plugs, 722.9 trans pan and gasket, etc.)
- PHENOMENAL pricing
I lucked out in another aspect with Weistec; their east coast dealer is only an hour drive away from me, in Orlando, FL. There's also a Eurocharged location in Orlando. Another thing I really like about Weistec is that they tune your base map, which you need to send to them, rather than just send you a generic off the shelf map. You can also add a burble tune to your liking. Can't wait to get mine!!!
- They offer the most horsepower on a stage 1 tune
- They offer more components for the CLS than the others (intakes, anti-surge, 2 step colder spark plugs, 722.9 trans pan and gasket, etc.)
- PHENOMENAL pricing
I lucked out in another aspect with Weistec; their east coast dealer is only an hour drive away from me, in Orlando, FL. There's also a Eurocharged location in Orlando. Another thing I really like about Weistec is that they tune your base map, which you need to send to them, rather than just send you a generic off the shelf map. You can also add a burble tune to your liking. Can't wait to get mine!!!
Junior Member
Joined: Jan 2020
Posts: 23
Likes: 4
From: Minneapolis, MN
2012 CLS 550 4-Matic
I've been on Weistec for over 30k now and it's still a beast when I punch down into sport mode. Destroyed a Q8 off the line the other day. Hope his kids are o.k.
Member
Joined: Oct 2020
Posts: 223
Likes: 82
From: Phoenix, AZ
2013 Weistec 540/715 tuned CLS 550, 2008 E350, and '07 Jaguar S-Type R
After comparing all of the big name tuners (Eurocharged, Pressuretech, Renntech, Weistec, OE Tuning, AMR Performance, AMS Performance) I went with Weistec. All of these companies seem to have great reputations tuning high end luxury cars, however Weistec was my choice for 3 reasons:
- They offer the most horsepower on a stage 1 tune
- They offer more components for the CLS than the others (intakes, anti-surge, 2 step colder spark plugs, 722.9 trans pan and gasket, etc.)
- PHENOMENAL pricing
I lucked out in another aspect with Weistec; their east coast dealer is only an hour drive away from me, in Orlando, FL. There's also a Eurocharged location in Orlando. Another thing I really like about Weistec is that they tune your base map, which you need to send to them, rather than just send you a generic off the shelf map. You can also add a burble tune to your liking. Can't wait to get mine!!!
- They offer the most horsepower on a stage 1 tune
- They offer more components for the CLS than the others (intakes, anti-surge, 2 step colder spark plugs, 722.9 trans pan and gasket, etc.)
- PHENOMENAL pricing
I lucked out in another aspect with Weistec; their east coast dealer is only an hour drive away from me, in Orlando, FL. There's also a Eurocharged location in Orlando. Another thing I really like about Weistec is that they tune your base map, which you need to send to them, rather than just send you a generic off the shelf map. You can also add a burble tune to your liking. Can't wait to get mine!!!
Joined: Dec 2019
Posts: 2,220
Likes: 470
From: Marineland FL
'27 EQG deposit, '22 F8 Spyder, '20 Fat Boy
Thinking of a tune for my 2020 G550...time to look into these options, and if a site sponsor wants to send me a price with a military discount (if applicable) feel free.
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Senior Member
Joined: Jan 2019
Posts: 335
Likes: 103
From: Saddlebrooke, AZ 85739
2013 CLS550 4Matic OE Tuned
OE tuning has a sale, check them out. I've had their tune for 2 years zero problems and as much power as you'd want. Email them, for pricing and make sure you get a handheld so you can change back to Factory if you go to the dealer. They do have a post here about the sale ending. Love it and it even increases my MPG. Marv
Newbie
Joined: Jun 2021
Posts: 4
Likes: 0
2014 CLS 550 4Matic
Is there a sponsor for Weistec here?
Newbie
Joined: Jan 2024
Posts: 1
Likes: 0
2013 CLS550
Thanks in advance!
Member
Joined: Oct 2020
Posts: 223
Likes: 82
From: Phoenix, AZ
2013 Weistec 540/715 tuned CLS 550, 2008 E350, and '07 Jaguar S-Type R
DigitalDisaster it has been a couple of years since your post. I recently picked up a 2013 CLS550 with only 21k miles on it (24k now) and I am strongly leaning toward Weistec. Do you have anything more to say after a couple of years of running this tune? Did you get anything else from them?
Thanks in advance!
Thanks in advance!
Member
Joined: Oct 2021
Posts: 107
Likes: 34
2012 CLS550
I've been running the Weistec tune for a couple of years now. Absolutely problem free and the car is way faster than you expect. I took mine directly to them in SoCal. Took maybe 30 minutes and instant power.
Senior Member
Joined: Apr 2023
Posts: 469
Likes: 299
2014 S63 2010 ML350 Bluetec 2009 SL550
Newbie
Joined: Mar 2024
Posts: 7
Likes: 0
C43
Nothing new to report, the car continues to be dead reliable and an absolute blast to drive. A few months ago I had it to my mechanic (Eurosport) for the recommended new plugs @ 60K miles and the owner was amazed at how fast this car is. He drives a Porsche Panamera GTS and said my car would easily dust it
Member
Joined: Oct 2020
Posts: 223
Likes: 82
From: Phoenix, AZ
2013 Weistec 540/715 tuned CLS 550, 2008 E350, and '07 Jaguar S-Type R
I recently both a cls550 and interested in the weistec stage 1 tune, just worried it won’t be as quick as a eurocharged or amr tuned 550. Would the difference between these tuners be negligible? I probably would even notice a difference in power correct? I don’t want to get the tune and have regret after not picking the other company.
Newbie
Joined: Mar 2024
Posts: 7
Likes: 0
C43
Member
Joined: Oct 2020
Posts: 223
Likes: 82
From: Phoenix, AZ
2013 Weistec 540/715 tuned CLS 550, 2008 E350, and '07 Jaguar S-Type R
I didn't know that. I haven't personally seen dyno sheets of any of these tunes with the possible exception of Renntech.
