Hi Guys,
I own SL 350 (R230) Yearr 2004 (M112), I want to increase more power to my SL.
Has any one got experience base on two suppiers, can you please give me some advise.

-Brabus (3.7 to 4.4. L by displacement increase, 325 HP)
-Kleemann (3.7 kompressor, 350 HP)

Thank you.

Both are well established.

I would go with Kleeman, it would end up cheaper in the end.