Spark plugs

[chesster6969]

Bosch Silvers arent available for 325i's I assume. Could only find WR9LS .

[DaN]

The WR9LS is a silver plug, but that's the part # for the eta plugs.

[///Maddog9000]

I ran +4's in my busted m20 for quite awhile. The motor had horrible compression and leaked oil, fuel, coolant, air, you name it from everywhere. Bad misfires under load and at idle. Platinums made the beast run a little smoother all around. Now I have a M50TU and I run the +4's in it and they work great.

[BTP325ic]

dam this thread is old.

[Knockenwelle]

I've always been a fan of NGK V-power. The plug that crosses to the W8LCR is NGK ZGR5A.