i got new coils for christmas and i looked at the boxes and two had the 100A and two had a 100B part number. whats the difference?

 

"A"'s are the first revision, and "B"'s are the 2nd revision.

 

Functionally nothing

 

so im not the only one who got ignition products for christmas! lol i got some new plugs. ive noticed that over the years, my gifts have changed for what i "want" to what i "need".

 

u better make sure u actually got some "new" coils

cuz Mazda have discountined the "A" revision for "quite a LONG time" so ...

 

*slaps forehead* wow so i just got new coils too. i ordered them for the buy/sell sub-forum. i read this, ran downstairs to check them, and sure enough 100A.

is there any more info on why these were "revised"

 

Not necessarily any change in specs....often a change in supplier

 

ok cool. just checking

thanks

 

The revised 'B' Coil "suppose" to last longer than the original 'A' Version.

 

"supposed to"

lol

 

^HAHA! Ain't that the truth...I got new coils for Christmas too. A nice set of GM Performance LS2 coils! hehe Also got new plugs and Moroso wires, oh yeah and I have the coil connectors being sent out this week. Santa was nice to me this year or should I say atleast my wife was...

 

Shuuuutttt Up !

Die !

 

I thought the 100's were the first version and 100A's were the second version? The coils I just got were 100A's, and the ones I took off the car didn't have an 'A'.

 

the coils should stil bear the same part number..a revision may be a beter insulating material.. mostly thogh a new supplier or revision may be to blame

 

Yep, that is why I said:
In the 2nd post of this thread...

 

either way i don't think any coils will last that long with the Renesis....but may BHR's ingnition upgrade is supposed to b the best on the market