Works perfectly with the Coltspeed Ignition booster, it makes the revs smoother and helps to reduce knock. Recommended 








Evolving Member
Did you have the ignition booster before the coils or did you install them at the same time?
Evolving Member
Question, what's up with the Gruppe M's black intake pipe being rotated? It's in a different position...
Evolving Member
totally spotted the injector dyn harness to adapt the injectors. nice!!! getting those this week for my WRX.




