Installed the plugs last night. The L seems to drive fine, no fouling but I only have about 50 miles on them and it has been @ 60 mph (1800 rpm). I have been keeping track of my gas mileage so I will be able to tell if it has effected it or not.

 

Any signs of detonation at WOT? Thats been my problem so far with the TR5. When I reach full boost there it is and I gotta back off. I didn't have that problem with the stock plugs and may go back to them.

 

I had some detonation @ WOT with the stock plugs but drove around last night with the window down and have not had since the plugs were changed.

 

did you change the plugs yourself? how long did it take, what tools did you need

 

Yes I changed them myself. This is now the 3rd set I installed in an L. On the 2 prior times it took aprox. 1/2hour for the passenger side and 2 1/2hours on the drivers side. This time it only took me 1 1/2hours to complete. The key is to purchase a 1/4 7mm swivel combo (Thanks Sal for the tip). I will try to post some pics and info in the next few days.