im tuned to about 25 psi and its probably i change my spark plugs, it seems that everyone has something different to say about what plugs to use. factory ones, iridium, 1 step colder? im not sure, im wondering if you guys have opinions on this?

 

Stick with stock.

 

X2

 

im running 1 step colder ngk iridium's and i love em

 

ill try the stock ones and if it doesnt make a difference, ill try the 1 step colder ones

 

well whats the issue ur having? or u just wanna swap em out for fun

 

well my tuner suggests i should change them and it starts missfireing sometimes when i power shift

 

so then dont go stock if ur having issues with stock lol

 

yeah, I get misfire on cylinder 2 all the time. at 80K and tuned, might be time to throw some new ones on too.

 

Stock, I was told by a tuner to change them every 15k miles.