![GrimmSpeed [15-21 WRX/STI, 13-17 Crosstrek, 14-18 Forester, 13-21 BRZ] Hella Horn Wiring Harness | 040026](http://jdmuscleusa.com/cdn/shop/products/grimmspeed-hiring-harness-hella-horns-subaru-wrx-sti-2015-2019-horns-grimmspeed-040026.jpg?v=1614517926&width=1946)
![GrimmSpeed [15-21 WRX/STI, 13-17 Crosstrek, 14-18 Forester, 13-21 BRZ] Hella Horn Wiring Harness | 040026](http://jdmuscleusa.com/cdn/shop/products/grimmspeed-hiring-harness-hella-horns-subaru-wrx-sti-2015-2019-horns-grimmspeed-040026-2.jpg?v=1614675528&width=1946)
![GrimmSpeed [15-21 WRX/STI, 13-17 Crosstrek, 14-18 Forester, 13-21 BRZ] Hella Horn Wiring Harness | 040026](http://jdmuscleusa.com/cdn/shop/products/grimmspeed-hiring-harness-hella-horns-subaru-wrx-sti-2015-2019-horns-grimmspeed-040026-3.jpg?v=1614658544&width=1946)
![GrimmSpeed [15-21 WRX/STI, 13-17 Crosstrek, 14-18 Forester, 13-21 BRZ] Hella Horn Wiring Harness | 040026](http://jdmuscleusa.com/cdn/shop/products/grimmspeed-hiring-harness-hella-horns-subaru-wrx-sti-2015-2019-horns-grimmspeed-040026-4.jpg?v=1614643728&width=1946)
![GrimmSpeed [15-21 WRX/STI, 13-17 Crosstrek, 14-18 Forester, 13-21 BRZ] Hella Horn Wiring Harness | 040026](http://jdmuscleusa.com/cdn/shop/files/square-21906314362982.jpg?v=1792141320&width=1946)
After some testing, Grimmspeed determined that the additional few dBs offered by wiring with a relay weren't worth the added headache and potential failure points of a more complex harness using automotive relay, inline fuse and additional wiring directly to your battery. Fully pre-assembled, Grimmspeed simple harness will allow you to plug and play in seconds. Should your heart desire those last few ounces of ear-piercing goodness, their harness can also be adapted for use with a more complex relay harness.
Hella Horn Wiring Harness
Fits: 15-21 WRX/STI, 13-17 Crosstrek, 14-18 Forester, 13-21 BRZ
Sale price
$5500
Earn $1.10 In JDMuscle Rewards!86 in stock
GrimmSpeed
Hella Horn Wiring Harness
Fits: 15-21 WRX/STI, 13-17 Crosstrek, 14-18 Forester, 13-21 BRZ
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![GrimmSpeed [15-21 WRX/STI, 13-17 Crosstrek, 14-18 Forester, 13-21 BRZ] Hella Horn Wiring Harness | 040026](http://jdmuscleusa.com/cdn/shop/products/grimmspeed-hiring-harness-hella-horns-subaru-wrx-sti-2015-2019-horns-grimmspeed-040026.jpg?v=1614517926&width=1445)
![GrimmSpeed [15-21 WRX/STI, 13-17 Crosstrek, 14-18 Forester, 13-21 BRZ] Hella Horn Wiring Harness | 040026](http://jdmuscleusa.com/cdn/shop/products/grimmspeed-hiring-harness-hella-horns-subaru-wrx-sti-2015-2019-horns-grimmspeed-040026-2.jpg?v=1614675528&width=1445)
![GrimmSpeed [15-21 WRX/STI, 13-17 Crosstrek, 14-18 Forester, 13-21 BRZ] Hella Horn Wiring Harness | 040026](http://jdmuscleusa.com/cdn/shop/products/grimmspeed-hiring-harness-hella-horns-subaru-wrx-sti-2015-2019-horns-grimmspeed-040026-3.jpg?v=1614658544&width=1445)
![GrimmSpeed [15-21 WRX/STI, 13-17 Crosstrek, 14-18 Forester, 13-21 BRZ] Hella Horn Wiring Harness | 040026](http://jdmuscleusa.com/cdn/shop/products/grimmspeed-hiring-harness-hella-horns-subaru-wrx-sti-2015-2019-horns-grimmspeed-040026-4.jpg?v=1614643728&width=1445)
![GrimmSpeed [15-21 WRX/STI, 13-17 Crosstrek, 14-18 Forester, 13-21 BRZ] Hella Horn Wiring Harness | 040026](http://jdmuscleusa.com/cdn/shop/files/square-21906314362982.jpg?v=1792141320&width=1445)