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-   -   Bp5es vs bp5res is there a functional difference (http://forums.pelicanparts.com/porsche-911-technical-forum/805389-bp5es-vs-bp5res-there-functional-difference.html)

mspirito 04-09-2014 04:34 AM
Bp5es vs bp5res is there a functional difference
 
Is there much difference between the two spark plugs ? Is the R just for the radio?

Bill Verburg 04-09-2014 04:44 AM
Quote:
Originally Posted by mspirito (Post 8005579)
Is there much difference between the two spark plugs ? Is the R just for the radio?
One has a resistor built in the other does not

In stock 911 wiring the resistor is in the plug so you would normally use a non resistor plug

the resistor is there to quell RFI


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