Plugs... Bosch Platinum +4?

[magindat]

Anyone ever use the Bosch Platinum +4 in our motor?

I have used them in all my rides since they came out and really like 'em. They have a part# (4458) for us. Just wondering if there's any reason not to use them.

http://www.boschusa.com/AutoParts/SparkPlugs/PlatinumPlus4/#

[Rider90]

I would not use a BOSCH ignition part in my car ever again. I used bosch wires in my 96 P71 and it misfired. Changed the wires it was fixed. I've used their platinum plugs in my 99 P71 and they started misfiring shortly after. BOSCH = *****ty ignition products.

[thePunisher]

yes bosch plugs are garbage!!! we see alot of driveability problems at the shop caused by them!!! besides that +4 design is rediculous!!!

[Joe Walsh]

I never really like the design of the Bosch +4 plug....ALL those ground electrodes!

Seems to me that they would shroud the spark from the fuel/air mixture.

Just my 2 cents.