Put the new plugs in and only took bout an hour. Really need to thank all of you who have done this and put the info out on it. The plugs were replaced with oe iridiums by ngk.

Oh and i guess it pays to haggle with the sales people. The nice sales lady in autozone looked em up and i was givin her hell about the price....jokingly. They were 12$ and sum change . She was nice enuff to sell them for 9.00$ a piece.

I must say alot more pep and better gas mileage. Smoother idle also. Only have bout 78,000 on the tl but all highway miles. Recommend new plugs if you need em......Too easy.