slowec

iTrader: (9)

guess I should add tr6 to my sig , almost forgot they were in there.They work fine in my 04.No idling or other probs.

parish8

iTrader: (6)

for me tr6 plugs did have a noticably worse idle but still not too bad. no problems here running them everyday. now switch to tr7's and look out, tr7's run like **** at idle.

Sexyblu03

no not at all. the stock plugs will be fine well over 100,000 miles, but you could pull 1 to check it out. in my opinion if you were to change the plugs use the same as stock.

one03sierra

iTrader: (1)

hey slow i did a lot of research on plugs and even burned a few up on the nos. i ended up going to a tr6 iridium plug due to the tip being very hard. they idled and ran great. the nos will not burn the tip off of an iridium plug either.

slowec

iTrader: (9)

Thanks, I can always use some good advice.

goshawk23

Lance how much were you paying for the iridiums? i am in the same boat as slow and will be going with tr-6's but if the cost for iridiums isn't that great i'll get those vice the reg 6's.

12sec.5.3

iTrader: (1)

What are ya'll setting the gap at?

GMC SKI

.32-35 Gap is fine and has made close to 600rwhp for me On my turbo truck

F8L Z71

TR6 at .035 gap for more miles than I can count here. On the T/A and the Z71.

TurboBerserker

iTrader: (1)

TR6 at .35 daily driven with boost. No misfire troubles until I put in the big cam