Daytona Twin Tec DTT-1009 Ignition Module w/Single Plug for Twin Cam 04-06/Sportster 04-06 w/Carburettor1009 TC88A Ignition Race Twin Cam 2004 2006 Direct fit for: All 2004 2006 Carbureted Twin Cam 88 Engines and Sportster NOTE: When ordering for a Sportster, indicate your model year so the correct speedometer calibration can be pre programmed into the unit. The 1009 EX version of this product is emissions legal the difference between the two products is that this version of the product has advance curves with a slightly larger adjustment range and it