E39 M5 manifolds?
Discussion
The biggest restriction on the M5 is the manifolds, BMW decided to cheap out and use the same manifolds as the 540i.
If I was going to replace mine, my money would go to Russ Fellows. He's currently making an exhaust for my M5.
http://www.russfellowsfabrications.co.uk/m5e39.htm...
If I was going to replace mine, my money would go to Russ Fellows. He's currently making an exhaust for my M5.
http://www.russfellowsfabrications.co.uk/m5e39.htm...
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