KLEEMANN W210 Headers IN STOCK!!
Also, can you post some pictures of the headers for us to see.
Also, can you post some pictures of the headers for us to see.

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There is no reason one can not cleverly relocate the stock primary cats before the resonator or x-pipe. They are metallic and flow well. The secondaries and manifolds are the primary restrictions in the W210 E55's. I imagine that if I were to do this, I might need to extend the O2 sensor wires back a little further.
This is a very good deal. There is definite engineering in the Kleeman headers as evidenced by the right side header alternating cylinders for initial collection.
Last edited by Schweinhund; Jan 22, 2012 at 10:14 AM.
If I wanted to go with your headers setup but also install four new cats (cut the lower pipe sections), would ECU reprogramming be required?
My idea is to go with four metallic cats (two on each side) as in the stock layout.
Thanks







