FaradMk4

Thanks mark. Yes I have the VR6. I am currently using the NGK spark plugs, I was wondering too because I heard Bosch was good for our cars too.

I'm about to perform a tune up to my 2003 Jetta Gli. I was wondering specifically, which sparks plugs you guys are using for Daily driver use. My car, motor wise is stock. I also plan to upgrade the coil pack and found a set at ECS tuning. Any tips, direction and advice would be much appreciated. Thanks in advance.

I'm having the same issue with my vehicle. Motor wise, my Jetta is stock. At times when given throttle, the car will sputter, losing power. The codes I read were for a o2 sensor though. The MAF sensor sounds really accurate with what's going on!