M275 V12 Bi-Turbo Platform Technical discussion relating to models sharing the M275 V12 Bi-Turbo (V12 TT). Including SL600, SL65 AMG, CL600, CL65 AMG, S600, S65 AMG.
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Need help on mods for CL65 AMG!

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Old Sep 13, 2019 | 02:53 PM
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Aladdin23's Avatar
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2014 CL65 AMG
Exclamation Need help on mods for CL65 AMG!

I have a 2011 CL65, the car has these mods:
- ECU/ TCU from Eurocharged (was told by Jerry it was an aggressive tune)
- BMC Filters
- Water expansion tank from newer M279 engine
- VRP intercooler pump

I have a warranty from CarMax. As of now, with the modifications I have, the warranty company cannot see any of them. I want to know what more mods do you recommend? The car doesn't feel as fast as it should. I know it is heavy (5,000lbs) and has a 5-Speed but it doesn't feel as fast as the numbers say. I do understand that the torque curve has a massive drop.
Also, can I run a bigger rear tire but keep the stock rim? If so, what tire?
I want to use 98 octane as the car states, where to buy it from? Also, what about race fuel or 100+ octane fuels?

Thanks fellow V12 TT enthusiasts

Last edited by Aladdin23; Sep 13, 2019 at 02:55 PM.
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Old Sep 13, 2019 | 04:26 PM
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g60wall's Avatar
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2014 E63s
Get a obd hook up, or a icarsoft to see some statistics of what the motor is doing. It will tell you if something is off.
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