Zod

As the title says,was wondering whats the best rout that people who are modded (tune/ Down pipe) taking for plugs

Are updated stock ones still the best option. or is there a better option?
Gaping stock or (please provide suggestion)

Cheers

E55Dimon

2015+ OEM plugs 👍

chiromikey

NGK 95770 ILZKBR7B8DG gapped to .024 are working great for me. They’re one step colder than OEM and I’ve gotten some performance gains at the track that I can only attribute to the plugs since there were no other changes.

KLR CLS

All you want to know about plugs here:

https://mbworld.org/forums/w212-amg/...ok-inside.html

Zod

Hmm mine is a 2015 S model, which came with the new plugs, but I got a set from my tuner, have to look up what they are as its clear they need replacing, getting typical signs every one else has they they are going.
Am also on tune/ DP combo so debating on what plugs to get...

When you say the plug is one step colder then stock, are you referring to the updated stock plugs?
Thx for the info, you run turbo upgrades though yes? whats the up side/ down side when running 2 step colder(8) over 1 step colder(7)?

chiromikey

The plugs I just replaced were from my tuner and were two steps colder than my stock plugs. I didn’t think two steps colder was needed for just tune and DPs. I have no idea what specs (if any) have changed on the factory plugs from 2012 to 2015 as I’ve only heard speculation with no evidence.