I have a question about '04 Evo VIII Coil-Pack, all the answers will be greatly appreciated.

I recently got the Greddy Profec B Spec II Boost controller on my car, and as far as I can tell, my coil-pack gave out. I have searched alot for After-Market coil-pack / wires / and spark plugs. I had good luck with wires and spark plugs, but I didn't come across any company that offers upgraded coil-packs. Reason why I think its my coil-pack, is because I upgraded the wires and spark plugs, and the car still jerks at normal boost. Do I go along with factory coil-pack (if it is the coil-pack thats messing up in the first place), or is there a company out there that manufacters Evo VIII after-market coil?

Thanks alot!

 

What kind of other mods do you have? Upgrading the coils usually isnt necessary below 350 whp. The Buschur coil-on-plug seems to be the way to go.
http://www.buschurracing.com/cgi-bin....cgi?29X376545
https://www.evolutionm.net/forums/sh...d.php?t=148629

 

Yea the buschur kit is an excellent choice, and I have heard nothing but good things about the HKS DL ll

 

Also, contact KCEVO on the boards here...he makes high performance EVO coilpacks...they are awesome and quality! And yes, the HKS DLI2 is awesome! I have the dli2.

 

What do you mean by jerking? Are you sure it's an ignition misfire? The obvious first thing to rule out would be a boost leak.

 

so why would some need to upgrade the ignition for?

 

The factory ignitionis good for 600 plus horsepower... You can upgrade if you want but there is no need.... I have put down over 600 with my factory coil packs and according the AEM and HKS Tuning Programs everything is good on the ignition spark....

 

Well it says Cylinder Misfire. I even went to the dealership and they are like, we never had problems with ignition. If its not ignition, what else could it be? I know for sure its not any type of leak, cause I checked that.

Thanks for your help...

 

List your mods.

 

Custom Intake (BOV)
Custom Exhaust