jhell00

well I called today to get nhk tr-6 but the place sad they were discontinued... they cross refrenced the number and said therr was sn autolite 103... is that ok to use?

black35th

The NGK TR-6 is discontinued? No way, I think you need to try a different place.

jhell00

I called another place and they also said they were discontinued and autolite is the only plug! so can I just go with it? if it cross refrenced with ngk tr-6 it should be good right?

black35th

NAPA still sells them, I just called. But if you want to run autolite then do it.

jhell00

si if run the autolights it will be fine? u know napas part number?

Allen2001GT

its not like autolite's are a bad thing??? can't go wrong with ngk's or autolite's, imo.

pcs

i switch to the auto lights 103 from the ngk tr6 model no differance. the autozone manual said that the 103 was two steps colder than stock, which is what i wanted to try but when i cross referance the 103 on autolites web page, is the same thing as the tr6. my question is why do you want to use a colder (copper) plug on a stock stang? stangs come with platinums from the factory. if you go to autolites page the list a platinum plug as the replacement.

zinc02gt281

why in the hell are you putting a colder plug in a near stock Mustang GT, thats my question?

that plug is meant for cars with superchargers and/or nitrous...

Go to Oreilly, advanced, or autozone and ask for NGK TR55s. No need for the iridiums or platinums. When getting platinums you run the risk of scraping off the tip of the electrode when chekcing the gap...

The box should be silver and say V-Power in red near the top of it...

BTW when changing the plugs dont be afraid if the rubber boot comes out of the hole with the COP setup. Make sure you use the diaelectric grease on the end of the rubber boot tube...

black35th

Hes gonna be running a 100 shot, thats why hes running a colder plug...

Nolimits31

Yea NAPA should have them in stock i put them in when my s/c went in about 3 months ago.