Supersprint installing question...
I have bought the full exhaust for BMW 330ci M54.
During the installation of it I got the problem.
The Superspint exhaust has 6 plases for lambda oxygen sensors - 4 at the manifold (787401) and 2 at the front exhaust (787402). But in the OEM exhaust I have only 4 lambda oxygen sensors.
Could you please tell me, how I must install my lambda oxygen sensors in SS and in which places?