So the 6's should be ok.
My tuner said we should get 7's but he does not know details like that with the VQ as well as you.
Thanks!

 

# LFR6A-11 = one step colder copper plugs I believe? should be good to go.

 

I just installed the NGK copper plugs with my Greddy TT kit and now when I turn on my car it Idles extremly high and then starts to bog up and down very rough. Could this be that I have the Copper plugs at the gap they come in and should I gap them? Or do I have something else like a vacum leak going on here?

 

Definately sounds like a leak or some other small issue. Changing out plugs, in themselves, will not result in a high idle. Poke around...I bet it's something small and silly.

 

http://www.sparkplugs.com/results_ap...1&AAIA=1431958

this is one of the best places i have found. just change the corresponding number to get the right heat range. super quick shipping too.

 

Were going to check for leaks today with a smoke machine. Hopefully its something really stupid we overlooked.

 

Forget all those internet places, I went to my local Auto Zone (or advanced auto if you're in east coast) and found them for $4.99 a piece. No shipping, they have bunch in stock. Picked up 6 one step colder ones and good to go! /end thread lol.

 

the thread was ended 2 years ago

 

summitracing.com is the best. They were under 5$ a plug. Autozone wanted 9$ a plug when i checked there. That was the same exact part number and everything. summit has them in stock all the time. I got mine the following day with regular shipping costs.

it came back