98hardtopZ

iTrader: (7)

would tr55 iridium's be okay for a stock ls1? i need to change mine out and they dont have tr5's...

Vols Fan

iTrader: (7)

My buddy is running them in his 02 WS6 right now with no problems.

staringback05

iTrader: (8)

there ok....the ac delco iriduims work good to....just stay away from the boschs

SHINER

iTrader: (18)

TR55 or TR6's will work for your car both great plugs but i like the 55's

TheBlurLS1

iTrader: (8)

The TR-6's are too cold. I put a set in mine gapped at .035 trying to chase down some problems and it ran like ****. Incredibly smooth, but it felt like it was down 30hp. If you've got spray they are fine and offer some extra security, but you don't need them n/a.

The iridiums are fine. Run them with the gap they come with and don't alter it. I noticed no difference from the v-powers to the IX's BTW, so if want to save a few bucks, just run the v-powers at .055 and you'll be fine.

Use a little anti-sieze on the plugs as well.