Top End Oiler kits for the Suzuki GS 1100 & 1150 4-valve cylinder heads. These are the absolute finest machined kits available for your drag bike or street bike needs. Don't be fooled by cheap imitations, these are made with the finest domestic 6061 billet aluminum and come with the OEM O-ring and Made in the USA black vinyl wrapped stainless steel lines and black aluminum 90's & T fitting.