STM Coil-On-Plug Ignition for Evo 4-8 with GTR NGK Coils FIC The "Black Nitride" is a

The "Black Nitride" is a hardening treatment that is applied to the whole valve whereas the chrome coating is only applied to the stem

hardware and stencils as pictured

Mishimoto downpipe

The PTE PT5558 Gen1 Turbo is rated for 590 HP with a journal bearing CHRA

STM Coil-On-Plug Ignition for Evo 4-8 with GTR NGK Coils FIC The "Black Nitride" is aThis STM Coil On Plug (COP) Ignition System for the Evo 4 5 6 7 8 features the R35 GTR NGK coils that can support up to 800 horsepower! If you are at the limits of your current ignition, this is the next step up! Shipping Times: 2 4 Weeks These COP kits are hand assembled and recently we've been waiting on components for them to be completed. Accounting for build and wait time, these kits typically ship in 2 4 weeks, sometimes sooner! Vehicle Fitment: