Bolt on 40%-50% more power for stock 107'', 114'' and 117'' M-Eight motorsTrask compressor and turbine housing with Garrett internalsTrask plenum with integrated blow-off valveIncludes all install components: larger injectors, spark plugs, boost gauge with mount, oil feed, drain lines, custom cam cover, Thundermax tune files and all necessary hardware and gasketsMade in the USARequires use of Thundermax ECM (sold separately).Does not fit Twin Cooled models or models with fairing lowers that cannot be removed.Intended for offroad use only and recommended for experienced riders.