Don't use those, they suck. The center electrode is tiny, and fouls easily. I've had problems with them, and so have others. They don't last for ****.
Cons: fouls easily, don't last
Reviews of Bosch spark plug
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everything else runs pretty poorly on our cars. especially the bosch +4's
Cons: runs pretty poorly
Vehicle:
Volkswagen Jetta
I have bosh platnum on there and they look like crap after 2,000-3,000 miles.
Cons: look like crap, short lifespan
Vehicle:
Volkswagen Jetta
Mileage: 4023 km
I just replaced my plugs in an 89 16v yesterday. I ended up getting the Bosch platinum +2. I was leery of the platinums as everybody seems to knock them, but my car runs fine. They were 4 bucks each.
Pros: car runs fine
Vehicle:
Volkswagen Golf
got my f6dtc's at the dealer (only place i could find them), and they were around 4 bucks a piece. car ran like a dream.
Pros: car ran like a dream
Vehicle:
Volkswagen Golf
Part number: F6DTC
My OEM coil was failing at the time, & I replaced the plugs from Bosch -+4's to NGK V-Powers (copper)so I'm sure the plugs contributed aswell. It always took afew extra cranks to start with the Bosch +4s......
Cons: extra cranks to start
i;ve ran bosch plat 2 prongs for 2 yrs no problems! once I got my arcing wires sorted...
Pros: no problems for 2 years
Cons: wires can arc
i just changed my spark plugs, figuring i would do a tune-up before winter..the car was running fine before..changed the oem plugs that were in them to bosch +2's..well that was when the misfiring started...the car at low rpm's, lets say, 1500rpms, would stutter if i tried to full throttle it,...but when i get to about 2500rpms the stuttering would stop
Cons: misfiring, stuttering at low rpms
For the stock heads, I recommend the good ol W8AC (Bosch Copper)
Pros: good quality
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
Pros: ran a lot smoother
Vehicle:
Volkswagen Golf
Part number: FR6
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