Computer from 2005 speedster twin motor 155hp. 

When I googled part number this is what came out

664133 2004:

• Speedster 200 Twin 2nd Edition

• Sportster 4-TEC

2005:

• GTX 4-TEC STD

• GTX 4-TEC WAKE

• Speedster 200 Twin

• Sportster 4-TEC

2006:

• Speedster 200 Twin Edition 1

• Speedster 200 TOUR Edition 1

• Speedster 200 TOWER Edition 1

• Speedster 200 WAKE Edition 1

• Sportster 4-TEC Edition 1

• Utopia 205 Edition 1

used parts sold Asis please confirm fit your application ask any questions