I was doing a search & found across several different NGK types. My mods are in my sig & my stock plugs have began ****ting out at 26k miles. I will be upgrading my turbo (not sure EXACTLY when) but hopefully soon, and im curious to know whether or not I should get a step colder or not, and what gap? How many miles will the coppers last, about 6-8k? LMK!

 

I used bpr7es and changed them every other oil change or went i ran the car hard for a long period of time cost like 5$ to change all four so thats what you should do.

 

I'd say go with the 7's with the mods you have.

 

the rule is to advance one step colder for every 100whp. Gap around .25

 

BPR7ES <--- copper / BPR7IEX <--- iridium are the only plugs I will run.

 

why? there has been TON's of people that run copper its cheaper to replaced them every couple thousand miles then it is changing out iridiums, I mean i am running iridiums in my IX but that is because there are no copper plugs or i would be.

 

You can run one or the other, I run both too. What I meant from above is I only run 7s with alot more that 100+ hp over stock. Calm down Calm down.

The best plugs if money isn't an object are the ones that come from stock hands down in my opinion. They just aren't easy to get.

 

a set of 4 stock IGR7A-G iridium spark plugs can be had at yoparts for $9.84.

 

There ya go, thats Hella cheap too. , but I just went and looked and they show 23.99 a piece. Can you provide a link or instructions to get that price? Do you have to join for 9.95 per month?

 

^ Yes or sign up for the trial membership.

 

stockers for me
or the BR7EIX which is 1/2 a step colder than stock

 

BPR8ES is what I run and have been good, but I am making well over stock power.

 

Seems to be a mix of everything...

 

bp or bpr7es unless your running meth on a stock turbo or race gas...