bosch +4's.....any good?
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Best test would to be have them tested on a dyno with the same truck using a few different popular brand plugs. (O.E., NGK, & Bosch)
I don't think anyone will be doing this though unless they owned a dyno.
Jim
I don't think anyone will be doing this though unless they owned a dyno.
Jim
#6
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I have never had any luck using Bosch +4 plugs,they ran worst than stock in my daughter's V6 Camaro.I have had good results using Denso Iridium plugs with my truck.
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I have ran them in my dirt bike and they suck, the electrode came right out of the plug, I think it was cause by high compression but not for sure. When this happened to me I was about 5 miles from truck, lets just say that was a hell of a push. The next plug I put in my dirt bike was a NGK and never had any problems.
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i ran plus 2s for about 3k in my stang ran fine
i run plus 1s right now for about 9k in stang and have no issues
a buddy ran plus 4s for about 50k and n ever had issues
but i wouldnt use a platimun core plug for any boosted/juiced application. only NA i would
i run plus 1s right now for about 9k in stang and have no issues
a buddy ran plus 4s for about 50k and n ever had issues
but i wouldnt use a platimun core plug for any boosted/juiced application. only NA i would
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I wouldn't run Bosch anything in antyhing I own, not even in my neighboors lawnmower.
The +4's are about worthless and WAY WAY overpriced. They lead you to believe that the extra electrodes are good, but they aren't, they provide no extra benefit unless you loose 3 of them, you will still have one left.
Go with NGK's or a Denso if you want to really spend some money on them.
The +4's are about worthless and WAY WAY overpriced. They lead you to believe that the extra electrodes are good, but they aren't, they provide no extra benefit unless you loose 3 of them, you will still have one left.
Go with NGK's or a Denso if you want to really spend some money on them.