Looking to change sp...have a 99 gs400....what do you use?

 

I use NGK G-Power.

 

NGK Laser Iridium.

 

Cant go wrong with all the above listed, NGK is a great brand and make excellent spark plugs

 

i second that... they do make good plugs.... i think next time i change my plugs im going to Try Torque masters just to see if they do make a difference... would be nice to have a lil extra giddy up

 

I run OEM denso iridium.

 

Running OEM Denso right now. Next plugs will be NGK only because I'm partial to them.

 

OEM Denso Iridium. Can't go wrong with sticking to what the car came with!

 

OEM as nothing proves anything else is better.

 

Ngk Laser Iridium Spark Plug, but want to try Torque Master Plugs...

 

NGK Iridium. So far so good.

 

NGK Iridium (out of space metal...haha must be good). get am at any parts store ....been running on am for 40K ...also most posts that i've come across on CL say Torque Master suck for our rides...but keep us posted for the ones that really want to try am....

 

Denso OEM here

 

OEM also for me...

 

Torque Master ON MY GS400 SO FAR LOVE THEM