I,m running a 3# lower pulley..Which plug should I use for a daily driver..TR5 or TR6 ?? Thanks

 

I would go with the TR6 or Denso's for a daily driver. I ran TR6's in my 99 with a 5lb lower and 1.5lb upper with no issues.

 

According to Jim @ JDM.......with pulley and if you drive it fairly sensable.......go with the TR5's.......if you drive the **** out of it, or have Nitrous......definately get the TR6's.......I ended up getting the TR6's......because of both reasons They are easy to install........I did mine last night......first time and it took me like an hour total...........Key is to be patient and have two very important tools...........a 7mm swivel socket (Snap-on) and a strong magnet for picking the coil pack pinch bolts.........Keith

 

Houndog,
I'm running the TR-5's.
I run a #4 lower pulley and just ran a new best in the 1/8 last night.
I would go with the TR-5's

 

Well here is my 2 cents, I was told yesterday by a NGK tech that honestly he felt that for the Lightnings the TR-5 was to hot, he said up to slightly moded to use the TR-6 , anything over I was tol to use the BR7EF (stock # 3346 ) or a Irdium, which they have no equiv for that plug yet.