Hi everyone 

I was working on my 96 WRX at the weekend changing suspension (build thread will be coming) and as I was dropping the bonnet after I started the engine I noticed this: (picture attached)

there seems to be slight arching. 
Does this mean that I need to replace the coil pack??

I appreciate your help in advance 

 

It shouldn't be arching there , so I'd say something isn't right .

Could try swapping the ht leads and see if the arching moves , to rule them out first .

Otherwise I'd say get a second hand coilpack ,bud 

Thanks mate

I’ve ordered a new coil pack from ICP as it started to spark worse and it idled really rough.