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0405ec Bmwm5 03 Z

The Supersprint headers feature a four-into-one, equal-length design and high-flow metallic cats. This system alone was good for 25 whp. Everything needed to install in the upgrade is included, except for a new set $20 O.E. exhaust gaskets.
Basic Bolt-On Power for the BMW E39 M5: Part 2

 The Supersprint headers feature a four-into-one, equal-length design and high-flow metallic cats. This system alone was good for 25 whp. Everything needed to install in the upgrade is included, except for a new set $20 O.E. exhaust gaskets.  View Related Article

 

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