BriskSpark Plugs GOR15YTE-3 Performance 3 Electrode Yttrium Spark Plugs, Replaces NGK 7164, 7316, TR55IX, TR55-1IX, Denso 5326, IT20, E3.54, Autolight

Car runs better and stronger I use brisk in all my cars, from a 90 lx twin turbo to 03 cobra to 2013 gt500 and now my Mach 1 they always are a noticable improvement over any other plug on the market.

Using these on my 8.1l. I like them so far. I'll see how long they last with the 2 extra straps.