SL55/63/65/R230 AMG: Mods to SL65
I'm considering a couple myself, ECU/TCU, airbox and intercooler. I understand the benefit of the ecu/tcu, but not sure about the airbox and intercooler. Any advice?
I am assuming you are referring to RennTech parts.
We are a RennTech dealer in Orange County, if you have any further questions you are welcome to give me a call.
Then if you feel the need for some added horsepower, and more air, the CF air box is available for your picking.

I would however suggest the intercooler upgrade above the air box.
Let me know if you need any further information, we are the RENNtech dealer for San Diego, GMG would take care of you as well.
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Has anyone experienced any problems (other than wheelspin) with the ecu/tcu mod? Any failures or other problems experienced with the intercooler upgrade?
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