Is your car miss firing, have you burnt a coil pack out or simply looking to upgrade to provide a much stronger and more consistent spark? These Hitachi style high performance oil on plug coil packs are the answer. They are a great upgrade when increasing boost pressure and can be used with a variety of engines with the correct fitting kit (sold separately). These are a direct fit for the R35 GTR VR38DETT engine and similar to OEM Nissan part number 22448-JF00B or Hitachi part number HEX EXA 2410N.