I keep reading here and their that you have to change out spark plugs more often with a k24/18g set up or with mods in general. Im running Denso spark plugs and was wondering how many miles other run prior to changing them out. Also is their a specific tell sing that the plugs is in need of replacement. Thanks

 

I have k24/18g setup since September 08 (Denso plugs installed same time)and have done 5000miles from then...all ok...