Thread: NGK TR on stock GTP

Originally Posted by Bio248

autolites.

i run 104s because im not running that much boost, but when i start getting into what i will be come summertime i will run 103s.

do they need to be gapped or are they good to go ?

Way to cold... = ?!?!



Plugs will get fouled quicker as well as crappy mpg.


I ran them with my exact setup which warrants a cooler plug that your setup and I'm speaking from first hand experience. TR55's are already colder than stock plugs by .5