Our billet aluminum connector bolts right up to the stock OM606 boost pipe and manifold found in the Mercedes-Benz chassis that came with the turbocharged OM606 (W210, W140, W463).
 
This beautiful part comes with two threaded ports for 1/8 NPT fittings to connect a boost gauge, MAP sensor, ALDA, IAT sensor, etc...
 
Notice that this is installed where your EGR would normally go. Be sure you don't need an EGR and your local laws don't require an it.