Mr. Happy

They all have the same engine as the CLS63...is it the ecu tuning or a different exhaust or what?

vdubpower

selling points, they cant have the cheaper car have the same power as the expensive one.

theyve done it for yrs now

yes, probably just ecu tune

Saeedg48

just tuning - i want to get my hands on the SL tune.

freefall

I was told that the cheaper the AMG the less airflow is in the design to make sure that the C63 aren't beating the higher end models.

No idea if thats really true though...

xpl0sive

same thing they did with the old models... rated the E/CLS at 469 and the SL/S/CL at 493. exact same engine, same tuning, just different rated numbers.

RobbieRob

Performance is about the same though because of the weight of the bigger S and Cl, and the SL being a convertable.

vipermike

Don't forget about the bigger throttle body on the SL

xpl0sive

the bigger throttle body didnt come till later and then they updated the HP to 507

Zod

correct it came on the 2007 SL and it was easily retro fitted onto other models
AMG80mm tb with Y tube. Also it was rated 530hp if I recall. As it stood all of them produced the same power. Not 100% this is the same for the newer models. Time will tell and if not

zneB-sedecreM

Body for body, either stock form or AMG, the CL, SL, and S have at least a higher $25-$30K price tag, so for that much, the least they can do it add a little more power.....or thell their customers they do