High-Performance Spark Plugs Pair for Harley-Davidson Softail Deuce (1999-2014) - Improved Ignition & Fuel Efficiency for Cruiser Motorcycles

Item as described.Works great so far in my 06 TC88. Cheaper than the screaming eagles at the dealership.Part was installed but might go back to Harley Davidson for there spark plugs for better performance.They make a world of difference whenever you first install them but if it sits for a period of time with not being run it has a tendency to have carbon build up which then makes its not run correctly which then requires to replace with new ones so that is the only bad part of it but whenever they are fresh and new again they run great after that but they seem to only last about 2-4 months if that because sometimes they don’t last that long before they needed replaced again09 Electra Glide seem to b doing ok so far only have about 200 miles on them but better than paying HD price!!Replaces stock plugs on my 09 Ultra Classic at 20k miles. Gapping was incorrect but that should always be checked and corrected before installing and plugs. Install is super easy and done in 10min. Bike fired right up and is running much smoother. Over time plugs wear as gapping gets further apart and takes away from the performance. Should replace every 20k miles, trust me your harley will thank you for it.It’s a spark plug. Not too much to say but they look nice and work as they should.Replacement plugs for 01 Ultra Classic