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Hey Guys I am new to this Forum and i am looking for S1 Oem Coil Pack anyone here could tell me where i can buy them and how much, cant go to my dealership cause they dont deal with skyline parts. The reason why i wonna change them is casue due to my old ones there is loads of popping at 4000 to 5500 rpm, so was wondering anyone knows a proper fix for it also.