What spark plugs do you all recomend and do I need a custom tune? Thanks...

Mods:
GMP Stage II - Nate's 2.9 pulley
GMP Manifold
Injen CAI
ZZP downpipe w/ highflow cat
GMP touring exhaust
Polished SC
Polished TB
CA H/E
GMP Dual Pass
Drive Shop Stage II axles
Exedy Clutch/Flywheel Combo
TTR Engine mount
TTR Tranny mount (front/back)
B&M short throw

 

1 step colder NGK plugs and yeah i would get a custome tune with the new plugs

 

Alright...I'll go with the NGK plugs. ZZP states you can not gap the plugs that there ready to go when you get them. What up with that and should I trust that?

 

Yeah i guess that the ZZP are pregapped you should look at them they are kinda like splitfires i think but i have NGK and love them some places you need to regap your plugs so NGKs are good specially if you are getting a tune they can be gapped to your tune

 

I see what you mean. ZZP also says they can't be regapped. Once there gapped you can't do it over again?

 

certain plugs are made of a harder metal that cannot be safely bent.

 

Its just that also the dealership recommended me NGK plugs and i also use them in my Grizzly 660 atv they are really reliable