Its an evo 9 with Megan (Manifold, O2, DP, TP), GReddy Catback, Walbro 255, Injen intake/UICP and Hallman MBC
I have the NGK 1 step colder plugs (NGK R7437-8) and was wondering what I should gap them at?
Also adjusting my GReddy RS BOV does not seem to change anything. How do I adjust this properly.

Thanks!

 

Put the stock plugs and DV back on the car.

You don't need colder plugs and until you are pushing 28psi you dont need a new DV.

 

My tuner told me to get the colder plugs for my dynotune next week.
I know I dont need a new BOV and the stocker works great, but the RS sounds better, anyone on adjustment?

 

Your car will run better with the stocker on....

 

I have read a million posts explaining how good the Stock DV is. I believe it. However, I would like to use the RS and adjust it properly.

Still need some input from guys on the EVO 9 colder plugs. Anyone users that can speak from experience?