Hey guys I am about to change out my sparkplugs and was wondering if anyone had recommendations. I am running a Stage 3 Cavalli turbo, AEM fuel pump and 1300 injectors. I have FMIC and all hard piping, intake and DP and Test pipe. Thanks in advance and sorry if it is a stupid question and if I should just go with what the factory calls out.

 

Factory plugs are fine.

 

i am using HKS both in my car,in the rally car and the street car. Never failed.
Rally car using Race gas and has ALS.

 

Thanks guys