kicksZ28

iTrader: (33)

Anyone Use These Or Have Any Info On Their Quality? Will Be Changing Plugs In 98 Z28 Soon And Torn Between These And The Tr55's(ngk). The Ac's Run About $4.99 Each. Thanks

ROCNDAV

iTrader: (100)

I used them before, and liked them. Then again, I was biased as they were made on Haas machines and I worked for Haas at the time

kicksZ28

iTrader: (33)

I Tell You, I Have Been Reading The Forums And Most Go With The tr55's. Some Have Also Gone With The tr55gp's. I Might Go With The Latter Of The Two Because The Gp's Are Only About $2.98 At Advance. My Car Only Has About 51,000 Miles On It, But It Still Has The Stock Plugs. There Is So Much Info And Opinions On Which Plugs To Use. Thanks

98camaroLS1M6

iTrader: (35)

from what I've heard, the stock ac delco platinum make slightly more power than the tr55s and last a lot longer but for the price of tr55s you can't beat them. Only downside is they don't last as long. I would go with the rapidfire platinums.

hammerhead

iTrader: (1)

I like the ACD iridiums. NGK's are good if you're spraying though.

kicksZ28

iTrader: (33)

Well, today i bought the TR55's. The TR55GP's are gapped at .044 and the box advises not to change or tamper with the gap. The Advance Auto salesman said that the gap is set due to the resistance rating of the plug. I had bought the GP's initially, but returned them for the regular 55's. The gap on these can be changed due to them being a multipurpose plug. I will try these i guess.