B BlackMSP Member Mar 10, 2003 #1 I remember reading somewhere that if you get top of the line spark plugs it can increase your horsepower or somthign like that. Is that true? Or better spark plugs just make your engine run smoother.
I remember reading somewhere that if you get top of the line spark plugs it can increase your horsepower or somthign like that. Is that true? Or better spark plugs just make your engine run smoother.
