I have an brabus diesel d2 powerxtra box for sale. It fits inline six turbo engines with original 204 hp , it will boost up power to 250hp and torque from 500 to 550nm or something. All I can tell you that it transforms the car completely. It pulls like a train...
I am selling it because I am getting rid of my car and getting an W211 facelift with V6 engine and 7-speed automatic and unfortunately this box won't work with this car.
Make me an offer, bear in mind that this box new costs over $2500 or something. It comes complete with harness, installation manual receipt and warranty papers. A monkey could install this in less than 15 minutes. All you need to do is plug in a few contacts, thats all.
I am from Europe so shipping could cost a bit more. I accept paypal.
I had this box on my car since i bought it and never had any problems.