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S&S Cycle engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full S&S Cycle lineup with fast shipping and expert fitment support — order with confidence.
Transform your 1977-1984 Harley-Davidson Shovelhead or early Evolution engine with the comprehensive S&S Cycle Single Fire HI-4N Ignition Kit. This kit provides a complete single fire ignition solution, delivering a dedicated spark to each cylinder for superior combustion efficiency and power output. Unlike dual fire systems, single fire ignitions eliminate spark waste, resulting in smoother engine operation, improved throttle response, and more consistent performance across the RPM range. The HI-4N module is renowned for its reliability and customizable advance curves, allowing riders to dial in their engine for optimal results.
Experience the ultimate in ignition control and performance for your classic Harley. Shop the S&S Cycle Single Fire HI-4N Ignition Kit at GGCRACING for unparalleled quality and reliability.
| Years | Make | Model | Trim |
|---|---|---|---|
| 1997-1999 | Harley-Davidson | FLHR Road King | Base |
| 1998-1999 | Harley-Davidson | FLHRCI Road King Classic | Base |
| 1996-1997 | Harley-Davidson | FLHRI Road King | Base |
| 1980-1984 | Harley-Davidson | FLHS Electra Glide Sport | Base |
| 1983-1999 | Harley-Davidson | FLHTC Electra Glide Classic | Base |
| 1996-1999 | Harley-Davidson | FLHTCI Electra Glide Classic | Base |
| 1989-1997 | Harley-Davidson | FLHTCU Electra Glide Ultra Classic | Base |
| 1986-1990 | Harley-Davidson | FLST Heritage Softail | Base |
| 1990-1999 | Harley-Davidson | FLSTF Fat Boy | Base |
| 1994-1996 | Harley-Davidson | FLSTN Heritage Softail Special | Base |
| 1980-1983 | Harley-Davidson | FLT Tour Glide | Base |
| 1998-1999 | Harley-Davidson | FLTR Road Glide | Base |
| 1998-1999 | Harley-Davidson | FLTRI Road Glide | Base |
| 1993-1999 | Harley-Davidson | FXDL Dyna Low Rider | Base |
| 1993-1999 | Harley-Davidson | FXDWG Dyna Wide Glide | Base |
| 1999 | Harley-Davidson | FXDX Dyna Super Glide Sport | Base |
| 1987-1994 | Harley-Davidson | FXLR Low Rider Custom | Base |
| 1999 | Harley-Davidson | FXR2 | Base |
| 1982-1992 | Harley-Davidson | FXRS Low Glide | Base |
| 1983-1992 | Harley-Davidson | FXRT Sport Glide | Base |
| 1977-1982 | Harley-Davidson | FXS Low Rider | Base |
| 1983-1985 | Harley-Davidson | FXSB Low Rider - Belt | Base |
| 1999 | Harley-Davidson | FXSTB Night Train | Base |
| 1988-1999 | Harley-Davidson | FXSTS Springer Softail | Base |
| 1995-1997 | Harley-Davidson | FXSTSB Bad Boy | Base |
| 1980-1986 | Harley-Davidson | FXWG Wide Glide | Base |
Other popular S&S Cycle products customers consider together:
S&S Cycle engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full S&S Cycle lineup with fast shipping and expert fitment support — order with confidence.
Transform your 1977-1984 Harley-Davidson Shovelhead or early Evolution engine with the comprehensive S&S Cycle Single Fire HI-4N Ignition Kit. This kit provides a complete single fire ignition solution, delivering a dedicated spark to each cylinder for superior combustion efficiency and power output. Unlike dual fire systems, single fire ignitions eliminate spark waste, resulting in smoother engine operation, improved throttle response, and more consistent performance across the RPM range. The HI-4N module is renowned for its reliability and customizable advance curves, allowing riders to dial in their engine for optimal results.
Experience the ultimate in ignition control and performance for your classic Harley. Shop the S&S Cycle Single Fire HI-4N Ignition Kit at GGCRACING for unparalleled quality and reliability.
| Years | Make | Model | Trim |
|---|---|---|---|
| 1997-1999 | Harley-Davidson | FLHR Road King | Base |
| 1998-1999 | Harley-Davidson | FLHRCI Road King Classic | Base |
| 1996-1997 | Harley-Davidson | FLHRI Road King | Base |
| 1980-1984 | Harley-Davidson | FLHS Electra Glide Sport | Base |
| 1983-1999 | Harley-Davidson | FLHTC Electra Glide Classic | Base |
| 1996-1999 | Harley-Davidson | FLHTCI Electra Glide Classic | Base |
| 1989-1997 | Harley-Davidson | FLHTCU Electra Glide Ultra Classic | Base |
| 1986-1990 | Harley-Davidson | FLST Heritage Softail | Base |
| 1990-1999 | Harley-Davidson | FLSTF Fat Boy | Base |
| 1994-1996 | Harley-Davidson | FLSTN Heritage Softail Special | Base |
| 1980-1983 | Harley-Davidson | FLT Tour Glide | Base |
| 1998-1999 | Harley-Davidson | FLTR Road Glide | Base |
| 1998-1999 | Harley-Davidson | FLTRI Road Glide | Base |
| 1993-1999 | Harley-Davidson | FXDL Dyna Low Rider | Base |
| 1993-1999 | Harley-Davidson | FXDWG Dyna Wide Glide | Base |
| 1999 | Harley-Davidson | FXDX Dyna Super Glide Sport | Base |
| 1987-1994 | Harley-Davidson | FXLR Low Rider Custom | Base |
| 1999 | Harley-Davidson | FXR2 | Base |
| 1982-1992 | Harley-Davidson | FXRS Low Glide | Base |
| 1983-1992 | Harley-Davidson | FXRT Sport Glide | Base |
| 1977-1982 | Harley-Davidson | FXS Low Rider | Base |
| 1983-1985 | Harley-Davidson | FXSB Low Rider - Belt | Base |
| 1999 | Harley-Davidson | FXSTB Night Train | Base |
| 1988-1999 | Harley-Davidson | FXSTS Springer Softail | Base |
| 1995-1997 | Harley-Davidson | FXSTSB Bad Boy | Base |
| 1980-1986 | Harley-Davidson | FXWG Wide Glide | Base |
Other popular S&S Cycle products customers consider together: