There is alot of information from searching about colder plugs but i couldnt find what year went with what plugs.

So will the NGK LFR6A-11 work for 2003z
14mm Thread, 26.5mm (1.04") Reach, 5/8" (16mm) Hex Size, Gasket Seat, Resistor, Projected Tip, Solid Terminal, V-Power (V-Grooved Center Electrode), .044" (1.1mm) Gap, Heat Range 6

Thanks,
aggie05

http://www.sparkplugs.com/results_cr...a-11&x=62&y=13

 

Those the exact plugs that I run on my nitrous setup. Im actually on my 2nd set already. The first set wore out after about 50 bottles and about 25k miles. The electrodes were all rounded over and not shaped like they used to be.

 

I just installed a set of those plugs last night, got them from summit racing.

 

what did you pay per plug? Sparkplugs.com comes out to about 7.40 a plug shipped.

autozone has them for 5.49 but they are currently out of stock.

How much at summit shipped to your house?

Thanks,
aggie05

 

OKay i just found them at oreillys for 4.29 a piece.

 

$5.69 a plug from summit, local autozone wanted almost $8 a plug.