boola1341

iTrader: (1)

my 02 a4 z28 has reached 76k. i think its time for aplug and wire change. so i decided to go with ngk tr55's and msd wires. i purchased my plugs from a napa store where i live and he acted as if ngk's weren't the right plugs for a z. i tried to tell him about how many people are running them on ls1tech. And he asked WHAT IS LS1TECH???? i told him just give me my plugs so i could go home and ask someone that know's about them. the stock# on the plugs are 3951. Do they need to be gapped or are they pre gapped. i don't want to ask that napa guy nothing elso. also should there be like a washer with them because its not??

nickls1

iTrader: (2)

They should come pre-gapped, mine did, but always check them before you put them in your car.

02silvaZ

iTrader: (12)

i dont believe their is a washer cause i think they have a beveled seat, gap them yourself just to be sure they are right

Camaroz

iTrader: (2)

Almost anyone that changes there plugs on a LS1 that don't need to run a colder/hotter plug run TR55's.

Omec

iTrader: (2)

ive gotten that from the napa guys before too . i run NGK's in all my cars and they give me **** every time i go in for them. love those plugs. next time ask them why they sell them if there crap. see what kind of answer you get.

BriancWS6

iTrader: (18)

I would gap them to .055 for your application. And no, they dont have a washer, they utilize a taper seat instead.

z28maroman

iTrader: (2)

i havent had a problem with the plugs. my shop actually recconmmended them to me and when she gets back from the shop shell be gettin another set!

DirtyJohn

iTrader: (8)

If I had a nickel for every time I had to tell someone at a shop or part store "but the dudes on the camaro board said..."
Well...id prob have about a dollar, regardless I still trust this site with everything.

Ls1tech, I love you man