Which coilpacks are correct for JDM EJ207 heads?
 

I have JDM STI big port AVCS heads in my classic. I bought a set of newage coilpacks a long time ago for my project. Today I fitted new spark plugs again before mapping and noticed that the coilpacks are FK0186. It's hard to find definitive information about this but it seems that these are fitted to later 2.5 cars, is this correct? In that case is the boot length of these a bit short for the 2.0l heads? I want them to be a perfect fit to avoid issues during mapping. The boots are about 75mm long, are the other longer? It seems the boots are not available as a spare part either. It would have been easy to order new boots if needed.

Pretty sure its the 2.5 which needs the longer boots and the sti is the FK0186 The boots are interchangeable.

FK0140 - 3ms Dwell time. 9cm boot
FK0186 - 5ms Dwell time. 9cm boot
FK0334 - 3ms Dwell time. 8cm boot

Thanks, I bought the FK0186 (asking for 2.0 coilpacks) from a breaker so he must have fitted the shorter boots then as they are 7.5 cm.