Originally Posted by shockin330i
What cat? I know on the 335i n55 there are no cats or res on the pipes...
+1... There are no cats on the pipes, the N55's only have that 1 (two stage/structure) cat on the DP
ALthough it has been shown that there are either resonators or cats on the 335 x-drive's... (did anyone confirm whether those were cats or resonators on the x-drives'?)
I know on the N55 X5, there are no other cats or resonators after the DP.