Sprint Booster in s class

[S600 V12 W221]

I installed a sprint booster on my 2006 w221 s class s600, worked great for a few days then ripped up my transmission, anyone have any problems with the sprint booster 2 (the one with led lights) on there s class, or is is working well for anyone on there w221 s class.
Dont think the w221 s class gearbox likes the SB...
Could be wrong, please s class drivers let me know........

Thanks

 

[GRAV888]

Haven't you already started a similar thread?