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The 15/16 and 17/18/19 K46 all interchange exhaust. The one thing you want to watch is the 17-19 Euro style full exhaust has the extra venting tube on the trailing side of the main pipe into the muffler. There is no reason to buy the exhaust that has this for the USA applications. The 15/16 did not have this extra tube, so, buying the 15/16 application and putting it on the 17-19 K46 is a good plan.
CLONE ECU's are going to rule the world - ECU A against ECU B
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ECU to Cluster Matching with 200MPH available FREE for some Forum members
Add / delete DDC available FREE for some Forum members
All done here in the USA now and you dont have to ship to Poland