Im doing a pretty big build on my 2011 GSR long story short ERL build block, built/cammed/ported head. Jacks trans transmission and center dif, ETS T4 turbo kit, 4in intake, 4in intercooler, and a Precision twin scroll 6266. Im looking to be as close to 800 awhp as I possible can *not trying to get stuck on a number buttttttt you know how it goes* haha.

My last real question that I have is... What spark plugs do I go with? obviously going to have to go colder but which ones? A guy told me that I needed to run on of NGK's VR RACE series plug (part number R2556B-9 if you need it!) but those are $99 dollars PER PLUG I really don't want to spend $400 on spark plugs if I don't absolutely have to, so what will work and what are the higher HP X's running!? thanks in advance guys

p.s. Ill probably do a build thread once its all done if you'd like to see it we are finally getting CLOSE!!!!!

 

Honestly, I'd probably keep the stock plugs since they're rather cold anyway, but if you're wanting one step even colder HKS makes some for about $120/set.

http://www.maperformance.com/hks-m-s...003-m45xl.html