SL55/63/65/R230 AMG: 2003-2006 Mercedes-Benz SL55 AMG M113K Mk-Ultra Calibrated TCU Service
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Joined: Jul 2018
Posts: 90
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From: Atlanta
SL55
2003-2006 Mercedes-Benz SL55 AMG M113K Mk-Ultra Calibrated TCU Service
Mk-Ultra Electronics
I'm thinking of trying the TCU Upgrade. Has anyone use this companies product or any other's?Thanks from Atlanta
https://mkultra-electronics.company....ice-p266110631
Member
Joined: Jan 2019
Posts: 164
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From: NJ
2003 SL55 AMG GT , 2000 BMW 323I coupe
I bought a unit from them a short time ago. It does exactly what it's supposed to do accept I couldn't get used to the change in when the downshifts occur when in the auto modes.
If you're interested, I would be willing to send you mine so you can check if you like it. If you want to keep it just send me $100. Let me know if you are interested. Thanks,
Mark
If you're interested, I would be willing to send you mine so you can check if you like it. If you want to keep it just send me $100. Let me know if you are interested. Thanks,
Mark
MBWorld Fanatic!
Joined: Dec 2011
Posts: 1,485
Likes: 26
From: new ringgold pa
99 ford lightning
it works awsome i have been testing different ones for about a year now. the car will shift properly and quicker no dips in power on shifts. for myself my car was way out of sorts with the available at the time tcu tunes i have 306 gear and stall in my car. It would hang on shifts all kind of stuff. the 2nd tune i tried at the track i beat my stock pulley, record and went 11.25 at 122mph. You wont be disappointed with the tcu tune. 2 to 3 tenths and more consistent if you run at the track.
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Joined: Jul 2018
Posts: 90
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From: Atlanta
SL55
Sounds great and thanks for the input. Did you retrofit the shifter button with paddles? So I'm completely understanding, you can have a silky smooth shifting or go "boy racer" in manual mode?
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Thread Starter
Member
Joined: Jul 2018
Posts: 90
Likes: 2
From: Atlanta
SL55
Sounds great and thanks for the input. Did you retrofit the shifter button with paddles? So I'm completely understanding, you can have a silky smooth shifting or go "boy racer" in manual mode?
Mike why are ya looking to sell?
Mike why are ya looking to sell?
Out Of Control!!
Joined: Dec 2004
Posts: 14,212
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From: Boston, MA
00 MB ML55, 91 Toyota Supra Turbo(sold), 06 E500(gone), 03 BMW M3
I bought a unit from them a short time ago. It does exactly what it's supposed to do accept I couldn't get used to the change in when the downshifts occur when in the auto modes.
If you're interested, I would be willing to send you mine so you can check if you like it. If you want to keep it just send me $100. Let me know if you are interested. Thanks,
Mark
If you're interested, I would be willing to send you mine so you can check if you like it. If you want to keep it just send me $100. Let me know if you are interested. Thanks,
Mark
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Mercedes W211 E55
