Recommended spark plugs for 91 300zx n/t

[tofuzee]

On the NGK web site 6 plugs are selling for $70.26 but on other sites they're wayyy less expensive.. It appears that I'm looking at the exact same part.. I'm looking at the double platinums.. .. Any recommendations?

[DAEDALUS]

What's the part number? I'm pretty sure the '93s use PFR5B-11 or maybe PFR6B-11. Maybe the '91s are the same? Wholesalers (our sponsors) will get them down to about $8 each. Try http://www.everythingnissan.com. If it's a lot cheaper than that, be wary. They occasionally get listed on Ebay if you don't mind going that route.