iulian cirloaba
Feb 2025
"Really happy with the remap done on my car, polite, efficient service and would highly recommended!!!!!!!!!
Posted on Google · view on our Google profileMercedes-AMG CLS63 S C218 FL ECU Remapping
Stage 1 £499
Get my quote →The Mercedes-AMG CLS63 S C218 FL (2013 to 2018) leaves the factory with 585 PS and 800 Nm from its 5.5 petrol engine. Our Stage 1 estimate takes it to 680 PS and 900 Nm, roughly 16% more power and 13% more torque.
Mercedes-AMG
ECU confirmed on inspection
CLS63 S
C218 FL · 5.5
Stage 1 estimate
680 PS
STX Tuning
Stage 1 price
£499
Stage 1 ECU remap
Estimated gain
+95 PS · +100 Nm
Power
Torque
Figures are STX Tuning estimates for a healthy standard car, not a dyno result for your vehicle. Power is shown in PS. These are existing vehicle library estimates, not independently measured results.
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AMG GT 4-Door 63 X290
AMG GT 4-Door 63 4.0 Petrol
AMG GT 4-Door 63 S X290
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AMG GT C C190/R190
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AMG GT R C190
AMG GT R 4.0 Petrol
AMG GT S C190
AMG GT S 4.0 Petrol
What we do
From Stage 1 and Stage 2 ECU remapping to gearbox tuning and supporting performance upgrades, STX Tuning offers specialist vehicle software and tuning services for compatible petrol and diesel cars and vans.
Explore the available options for your exact vehicle at our Slough workshop, with suitable mobile ECU remapping appointments available across selected surrounding areas.
Not sure which tuning service you need?
Tell us what you drive and what you'd like to achieve. We'll check your vehicle and help you explore the available options.
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