Certified Dyno Testing shows a definite horsepower gain using the Thundervolt-50® spark plug wires over OEM wires. The fat 10.4mm wires also feature three layers of pure Zimplex® silicone, 600 degrees of heat protection, 102,000 volts dielectric strength with a tightly woven, heat treated fiberglass braid, and black "pro boots" bonded to the black.
 
Taylor Thundervolt Wire Sets Use with electronic ignitions
TEC#   Taylor #
33370 EVO FX / FL and Shovelhead     50031
33371 FLT & Sportster 50033
33372 EVO  FXR 50035
33374 TWIN CAM FX / FL 52031
33375 TWIN CAM FLT 52033
 
Taylor "Twin Cam" Spiro Wire Sets Use with electronic ignitions
TEC# Twin Cam Wires TEC#

Twin Cam FX Models

Twin Cam FLHT & 2004 Up Sportster Models

33350 Black 33360
33351 White 33361
33352 Red 33362
33353 Purple 33363
33354 Yellow 33364
33356 Blue 33366
33358 Orange 33368  
 
Taylor Custom Made “Pro-Wire” Sets
These sets are pre-assembled to custom fit each motorcycle. They Feature 8mm silicone wire your choice of resistor or solid wire and every wire has the famous "drag boot" end for positive double lock connection. Use with electronic ignitions
  Early  FL, XL & FXST

Side mount coil

EVO FLT,FLHT & XL

Front mount coil

 FXR  
Color TEC# TEC# TEC#
Black 99050 99075 99065
Red 99052 99076 99066
Orange 99054 n/a n/a
Yellow 99056 99074 99067
Blue 99058 99077 99068
Hot Pink 99022 99029 99025
Hot Green 99023 99031 99027
Hot White n/a 99028 99024
Hot Orange n/a 99030 n/a
 
Stainless Braided Taylor  “Pro-Wire” Sets with Colored Boot. Use with electronic ignitions
  Early  FL, XL & FXST

Side mount coil

EVO FLT,FLHT & XL

Front mount coil

 FXR
Color TEC# TEC# TEC#
Black boot 99060 99078 99069
Red boot 99061 99079 99070
Blue boot 99063 99079 99071
 
Taylor Custom "Pro Wire" Metallic Core Sets Use with Points Ignitions
90 degree Boot Black Red Yellow Blue
TEC# 99051 99053 99057 99059
 
Taylor Universal Sets
The same top quality wire and "drag boot" ends in a universal set.  Great for custom built bikes and many other applications. Wires come as a set and are 24" Long.
Taylor 24" “Universal" Spiro Pro Wire Sets  Use with electronic ignitions
  TEC# TEC#
Color 90 Degree End 180 Degree Boot
Black 99036 99044
Red 99037 99043
Orange 98038 99045
Yellow 99039 99047
Blue 99040 99049
Purple 99035 99046
Pink 99033 n/a
Green 99034 n/a
 
Taylor 24" “Carbon Wire" Pro Wire Sets  Use with electronic ignitions
  TEC# TEC#
Color 90 Degree End 180 Degree Boot
Black 99081 99044
Red 99083 99042
 
Taylor 24" “Carbon Wire" Pro Wire Sets  Use with Points ignitions
  TEC# TEC# TEC#
Color 90 Degree End 135 Degree End 180 Degree Boot
Black 99085 99095 99090
Red 99085 99084  
Yellow 99085 99092
Blue 99085 99091