i got my rx7 drove it for a cupple of weeks and now doing turbo swap i have my moter and everything but i need a waring harness and i dont now if i need a s4 or a s5 i have found a s4 but looking at the pics the injecter plugs are bifferent my car is 87 and i was told the motter was 88 but not looking like it.i dont really know to much about them so if any one can post a pic of a s5 harnnes or tell me where to look on the moter to tell me what it is thx

 

If you car is an 87, you need a S4 harness. They are the same 86-88. S5's are 89-91.

 

wow, thats ambitious, good luck with that.

 

is there any way to tell want year my moter it is jdm so i donno some one help me