Quote:
Originally Posted by rice_classic
The 2015 coils are vastly superior. However they aren't compatible with the plugs on the 2013/14 harness so to update the coil packs, one must also update the harness. This assumes a simple adapter from a 2015 coil to 2013 harness does not exist (it didn't when I updated mine). 3 Racing seasons, not a single failed coil.
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I recently installed a 2015 motor into a 2011 forester and spliced in the later coils to the original harness. Not too involved.