This is in response to several people who asked for pics so i went out and took out 1 of my newly installed NGK #6 TT plugs.
To put in a disclaimer -- i feel these HKS iridium plugs were not good for my set up -- i have heard they are great if you also have the HKS twin ignition set up, but i dont have that and i noticed some moderate hestition when using these on the top rpms of 1st, 2nd, and 3rd gears -- but putting the #6 NGK TT plugs back in last night i got NO hestitation.You'll notice i have put the NGK #6 TT plugs next to both the Bosch Platinums (which Spddemon13 and i had to get at PepBoys when my NGK #7 NA plugs fouled at the dyno 2 months ago), and then i have them next to the HKS #7 iridiums. Now pepboys told us they showed no distinction for the TT or NA for the bosch plugs -- so who knows if they are correct in that statement but what i did notice is that they are just a hair longer than the HKS plugs, but not close to as long as the NGK TT plugs. Here are some pics for your knowledge: : 
For those that can't tell -- from left to right is:
Bosch Platinums that show these #'s on them FR7DPX Germany R6 185, then HKS iridiums which are # S35i, and then come the NGK #6 TT plugs #NGK PFR6B-11B
:  All i can say is i had the HKS all gapped right around 33-35 and now have my NGK's gapped at the same range and they seem to run much smoother and seems to be more responsive and quick than the HKS. As for the Bosch--i can't really give much info on those as i only had them in for a weekend and intentially drove very cautiously and we didnt gap them down.
Keep in mind i havent run my Z w/ NOS and these NGK #6TT plugs yet, but have been told by several others that it will be fine.
Hope this helps some of you,
Wagz
WagZ
90 TT Stg VIII+
2000 Durango SLT Stg III
98 CBR900RR -- piped & jetted
itemline@aol.com
ECZA Member #0387 
Oh man, my bad - Jack B. 00:55:24 09/14/01
I have to agree, but I put them in places that are illegal (n/m) - Lady300Z 14:48:56 08/28/01
Wagz is 1" lower than me, also I don't have a rear - Lady300Z 15:12:30 09/06/01
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Size does matter>>NGK vs HKS vs Bosch plugs pics>>> - 
