When I asked for a quote from my dealership for Stage 1 Screamin' Eagle, they added a few parts that I wasn't expecting:
1) An upgrade to the spark plugs
2) Spark plug wires
But I've seen people go for V&H Slip-On Exhausts and K&N Air filters/ V&H O2 filters without changing the sparkplugs.
Any reason behind this? Should you upgrade the spark plugs even when using these aftermarket parts?
PS:
The part names mentioned in the quote are:
1) SE ST PERFORM SPARK PLUGS
2) SE 10MM PHAT SPARK PLUG W
1) An upgrade to the spark plugs
2) Spark plug wires
But I've seen people go for V&H Slip-On Exhausts and K&N Air filters/ V&H O2 filters without changing the sparkplugs.
Any reason behind this? Should you upgrade the spark plugs even when using these aftermarket parts?
PS:
The part names mentioned in the quote are:
1) SE ST PERFORM SPARK PLUGS
2) SE 10MM PHAT SPARK PLUG W