SL-Class (R231) 2013 on: Discussion on the SL550

SL/R231: SL550 R231

Old Jan 9, 2022 | 02:41 PM
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mercedes SL550 R231
SL550 R231

Hello guys
my SL550 it’s stock so I’m thinking to upgrade the turbo’s
what company do you recommend me to deal with ?
and what turbo size should I get ? And how much HP the car will get ?


thank you guys and sorry for my bad English
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Old Jan 9, 2022 | 06:58 PM
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2015 SL400 (M276 Turbo), 2014 C350 Sport (M276 NA), 2004 SL500 (M113), 2004 Audi TT225 (BEA)
This may help. Why don't you just start with an ECU tune? A tune will get you over 500hp and is a lot cheaper than replacing the turbos. Plus, you'll need a tune with the new turbos.


Last edited by JettaRed; Jan 9, 2022 at 07:00 PM.
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Old Jan 9, 2022 | 08:10 PM
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SL550
Start with an ECU tune, better, wider tires, and an SL63 performance pack LSD to actually put the power down. I have a thread of almost all mods available for the R231.
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Old Jan 10, 2022 | 09:20 AM
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'13 SL550 Mars Red, Designo White interior, B and O sound
Hi! Sounds very interesting. Could you post a link to your thread, please?
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Old Jan 11, 2022 | 08:43 AM
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mercedes SL550 R231
Originally Posted by JettaRed
This may help. Why don't you just start with an ECU tune? A tune will get you over 500hp and is a lot cheaper than replacing the turbos. Plus, you'll need a tune with the new turbos.

I Bought an "AS-IS" $90,000 Mercedes AMG at Auction and got 50% OFF (Twin Turbo C63s) - YouTube


Thank you for helping me
I only put down pipe on my SL 550 so if I Tuned it by ECU it will be 500 HP on the wheele ?

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Old Jan 11, 2022 | 10:12 AM
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Originally Posted by zainal93
Thank you for helping me
I only put down pipe on my SL 550 so if I Tuned it by ECU it will be 500 HP on the wheele ?
I have used Vivid Racing's VRTune on my SL400 and am very happy. Here's a link possibly for your car. I don't know what year yours is.

VR Tuned ECU Flash Tune Mercedes SL500 | SL550 4.7L Bi-Turbo V8 R231 435HP 12-15 | VRT-MB-SL550-435 (vividracing.com)

There are other tuners, as well.

MERCEDES BENZ SL500-SL550 - 4.7L BiTurbo M278 (oetuning.com)

What year is your car?
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Old Jan 12, 2022 | 05:01 PM
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mercedes SL550 R231
Originally Posted by JettaRed
I have used Vivid Racing's VRTune on my SL400 and am very happy. Here's a link possibly for your car. I don't know what year yours is.

VR Tuned ECU Flash Tune Mercedes SL500 | SL550 4.7L Bi-Turbo V8 R231 435HP 12-15 | VRT-MB-SL550-435 (vividracing.com)

There are other tuners, as well.

MERCEDES BENZ SL500-SL550 - 4.7L BiTurbo M278 (oetuning.com)

What year is your car?


Thank you again
it’s 2013
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Old Jan 12, 2022 | 11:57 PM
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Originally Posted by Bitbytr
Hi! Sounds very interesting. Could you post a link to your thread, please?
https://mbworld.org/forums/sl-class-...ns-thread.html
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