What are the most recommended spark plugs to use for a 1.8T. I have heard irridum are the best.

any input?

 

Irridium are good, currently im using NGK-R's and they seem to do a good job. However if you are going to spend the money on Irridium you should consider pulstar pulse plugs instead. Im considering dropping the $100 for 4 of them myself. just my 2 cents

 

And for $100 I'm waiting on you to prove them out

 

well its gonna be a while before i do, i can hardly keep up on the repairs to keep this thing running. got my left from tie rod out, back right wheel bearing and accessory belt tensioner. just replaced water pump, and did valve cover gasket. and on top of all that going wrong now my guage cluster is flashing more lights than a police car and i have no clue whats causing it, i have a thread about it. but those spark plugs are said to show 11hp in a stock 350z and 10hp in a c6 vette. so who knows, definetly worth looking up their website to read about em they sound neat.

 

If you're not chipped NGK PFR6Q.

 

i've had installed the irridium spark plugs on my a6 ... made a world of difference on the car .... its been about 3 months now ... still running like a champ

 

I like NGK I went with iridium they were same price as platinum. I though that the Iridium was basically for the radio interuption for blue tooth crap and like that.

I have platinum in my 4.2 and they run nice.

 

Iridium's harder and thus can be made to a finer point producing a hotter and less shrouded spark. They've been proven by several mags to increase HP by about 2-4%...

 

http://www.youtube.com/watch?v=RI3Pjpq2UeQ

 

Impressive. Like the lucas oil gears. I'd like to take that thing to a bar... Go-on stick yer tung in it!