Coil Tuck Harness

The MazdaSpeed 3 & 6 Coil Harness is a way to clean up the engine bay and replace heat weathered wires and connectors. The Harness is universal between the Gen 1 and Gen 2 Speed 3, as well as the Speed 6. All connectors are new OEM and no donor harnesses or connectors required. 

Please select your options as to what systems you would like added or retained.

Systems to add.
-SSAIC and WoTBox additions have been moved to a separate product. Please see adapter harness listing.SSAIC/WOT Adapter harness

Systems to delete or retain.
- VTCS system is removed when the user has elected to swap their Intake Manifold to any aftermarket option. We can include a pigtail of the VTCS Connector to add into the harness if you plan to use the coil harness before and after Manifold swap. 
- Capacitor system was removed by mazda for the Gen 2 Speed 3 as it is not a vital system. Mazda used a capacitor in many of their ignition systems to act as a frequency filter to help reduce radio interference. If AM/FM radio is an important part of your driving experience we can retain this system for Gen 1 Speed 3 and Speed 6 owners. 

This harness is compatible with coil rotation brackets. 

It is recommended to pair with our Direct Injection Harness found here: https://harnessedperformance.com/direct-injection-harness/

See also our Split Second Addition Injector Controller Service here: https://harnessedperformance.com/plug-and-play-split-second-aic-service/