My mods are down below Whats next?

You have a Supercharged Cobalt SS with an Apexi S-AFC II installed ? How does it runs ? No codes yet ? Did you tune it ?

No codes I got it from www.modernperformance.com they where great with advice on the install :p tunning is very easy I put down a 14.1 @ 99

Any dyno runs yet ? Did you know how is your air fuel ratio at high RPM's ? Did you disable the boost bypass selenoid ?

Any dyno runs yet ? Did you know how is your air fuel ratio at high RPM's ? Did you disable the boost bypass selenoid ?


The boost bypass is the first thing you must do. The A/F will hit 12.2 for a split sec before 6K. And I plan to put it on the dyno next year I have a NX wet kit I am getting ready to install.

.. confused.. i was told you cant add the safc ii on a lsj

I guess you can, I have the DTEC-FC on my cobalt.

dont wanna burst your bubble, but it is not safe to put the NX kit on your car yet. the only way you can do it is to put it before your supercharger and that isnt good for it. you need to wait until there is a setup with a plate to go after the supercharger. just my 2cents

Not to bust a Bubble :D but i spoke with the guys at http://www.nitrousexpress.com/ and they tell me it can safely be used before a Super Charger Kit # 20920- #'s After - depends on Bottle size .
I ordered The Kit #20920-10 , the HD heater Blanket #15940 and the valve opener #11107 .I quess we will see what happens when its installed ..

I have the SAFCII in my skittle, its easy to use, and gives great performance and controll, nice mods bro, keep it up. I want to see more.