Originally Posted by Lifted07Duramax
Just curious how people are liking the NGK plug that is 1 step colder than stock plugs.
do they notice better performance? Less knock? Better mpg possibly? Even though its good enough
I am and love them, not one misfire and that's going up to 22psi
JB4 G5, WEDGE flash, Walbro 455 LPFP, HFS-4 meth kit 4-AN SS lines, BMS OCC, RB turbos W/3.5 N20 sensor, RB valve, BMS DCI, 3" AR Dps, Custom OC W/ SS lines, ER FMIC, ER CP W/HKS BOV, M3 control arms W/upgraded bushings, M3 Strut Brace, M3 front sway, Meyle HD tie-rods, HPA rear toe arms, Wavetrac LSD, DEFIV kit, Ohlins R/T Cois W/12KG swift springs, Power-Flex subframe bushings, stoptech rotors, Rogue Tranny Mounts, Morr VS8.2 rims 245/295