I use them, but a colder plug, they work great.
Yes the 5's are colder plug But they run great and less fouling out.
I just put in NGKs today and it fired right up.
i;ve ran bosch plat 2 prongs for 2 yrs no problems! once I got my arcing wires sorted...
For the stock heads, I recommend the good ol W8AC (Bosch Copper)
I'm running NGK BKR7E plugs, gapped to 0.028 with APR's K04 program and its working fine.
There was a considerable difference when I installed my new NGK plugs. My engine revved up easier and the fuel efficiency increased.
i put a heatrange colder (bosch FR6 because i can't get the ngk's local) in my bro's chipped 337 and it ran a lot smoother
Mine popped up with the NGK's all i did is tighten the spark plug a little more and it stopped.
And I tried both the Bosch and the NGK back to back, and the NGK ran far better than the Bosch. The Bosch were terrible in my case.
Write your review
Help others - share your experience with this part.
Voted AGAINST engine oil RAVENOL on the rating page
The brake pads NIPPARTS got the first review!
The brake discs Hella got the first review!
The brake discs OEM Suzuki got the first review!
For tires OEM Toyota already 25 reviews.
For tires IRONMAN already 25 reviews.
For starter motor OEM Volkswagen already 25 reviews.
In the rating best ignition coil already 13 brands participate!
In the rating best fuel pump already 5 brands participate!
In the rating best turbocharger already 4 brands participate!
In the auto rating headlights for Volkswagen Golf already 5 brands participate!
In the auto rating brake pads for Mazda 5 already 10 brands participate!
In the auto rating brake pads for BMW M2 already 5 brands participate!
Voted AGAINST engine oil RED LINE on the rating page
Voted AGAINST engine oil PENNZOIL on the rating page
