Thread: Iridium Spar Plugs
View Single Post
  #1 (permalink)  
Old 05-29-09, 05:08 PM
lreddiablo lreddiablo is offline
Cadillac Owners Fanatic
Cadillac(s): Cadillac
View lreddiablo's Photo Album 		 
Join Date: Apr 2007
Casino Cash: $2425
iTrader: (0)
Iridium Spar Plugs
Remove this ad
Does anyone know what type of plugs are in the 05 STS V8. Assuming delco but doubting Iridium. Has anyone tried iridium in this car? I know Bosch isn't a favorite here, but anyone tried the Bosch IrFusions? Any opinion on what would be the best performing plugs for this car? Delco Iridium? Bosch IrFusion?, something else?