iBkickinit

I am curious as to how the power of my SL600 after getting the Renntech Stage 2 would compare to a Stock SL65 AMG. Anyone know?

lorinserbenz

Sl600 renntech has a slight edge over the 65.. Probably depends on the driver.

Juice it

On the HP and Tq numbers claimed from renntech the 600 has the edge but in real life from what I have seen if we are just talking the ecu and nothing else the 65 is a tad quicker. I think its close enough to come down to the driver.

iBkickinit

I can definitely see where the driver could make a big difference. Is there any good upgrade for the SL600 other than the chip that is worthwhile? I looked into intakes, but they just dont give me enough bank for the buck IMO. Besides the chip, I had aftermarket resonators installed to open the exhaust up some.

france2112

I just sold my 2005 Renntech SL600 so I am very familiar with the car and acceleration. First, a Renntech stage 2 means the ECU/TCU upgrade and the Carbon Fiber Air Intake(CFAI). My car had the ECU/TCU only and I beat a 2006 CL65 both from a stand still and a roll by about 1/2 a car length to 130MPH. I didn't have the CFAI but I understand it really makes a nice difference even though the numbers are not high. Unfortunately it is very expensive.

jmejones

I don't feel the CFAI is needed. C&D already put down a 3.8 with the SL Renntech. The problem in the end wheel be who is the best at launching w/o wheel spin due to the torque of both cars. The stock SL600 already will give the SL65 a good run for it's money according to car mag 0-60 figures, again wheel spin was the culprit. W/RennTech added the moded SL will have an advantage over the SL65 and visa versa depending on the driver...Let's call Stig and get some lap times:-)