Daytona Twin Tec 1008-EX TC88 Plug-In Ignition Module for Harley-Davidson Twin Cam

The Daytona Twin Tec 1008-EX TC88 Plug-In Ignition Module is an emissions-compliant performance upgrade designed for 1999-2003 carbureted Harley-Davidson Twin Cam 88 engines. This advanced ignition module offers precision timing control and tuning capabilities to accommodate both stock and highly modified engines.

Key Features:

• Two advance curve families with adjustable timing to optimize performance for stock through modified engines
• Five rotary switches for easy configuration: mode select, timing adjustments, advance slope, and RPM limit (adjustable in 100 RPM steps)
• Selectable multi-spark mode for improved cold starting and smooth cruising performance
• Wide timing advance adjustment range (±4 degrees initial timing) accommodates various compression ratios and modifications
• Machined billet aluminum housing with black anodized finish for durability and heat dissipation
• Supports all OEM sensors including theft/security module for complete system compatibility
• Diagnostic LED communication displays trouble codes without expensive scan tools
• Coil outputs protected against short circuits for enhanced reliability
• Easy plug-in installation with no modifications to factory wiring harness
• Optional USB interface (sold separately, PN 18014) for custom advance curve programming via PC software
• 50-state street legal (California ARB EO Legal)
• Made in the USA

The 1008-EX solves the timing adjustment challenge on Twin Cam 88 engines, which use non-adjustable crankshaft position sensors. This module features rotary switches that allow precise control over initial timing and advance curve slope, enabling optimization for applications ranging from stock configurations to high-compression builds. The integrated diagnostic system communicates with the factory check engine LED, providing valuable troubleshooting information without additional equipment.

Note: Requires OEM coils with less than 1-ohm primary resistance and low-resistance spiral-core or carbon-core suppression-type plug wires. Not compatible with fuel-injected models.