Based on PDF from the Magnuson website regarding product eligibility for the limited powertrain warranty the SS doesn't qualify and get a warranty anyway. Unless there's something I'm missing...Someone correct me if Im wrong but you should receive a sticker with the CARB EO number when you purchase the kit. Just stick that under the hood. When you take it for smog they will see that you have a CARB EO so they shouldnt question it. Whether you are running the CARB legal tune or a custom tune, I doubt they would know as long as you are not throwing error codes.
Sucks you are running into these issues and without your car a period of time. I plan on getting the Maggie Heartbeat too since I am in Cali. I actually spoke to a shop thats near Magnuson (this shop has done a few SS and was recommended by others here) and they told me the issues you are having have been fixed. But apparently they have not.
When I get mines I plan on getting a custom tune so I wont have these drivability issues. I would lose their warranty but I guess thats the price for playing the game. The kit comes with 6lbs of boost. Im sure you would be fine as long as you have a good tuner.
I plan on just running the stock kit with stock exhaust to stay lega in CA. I just want a litte more fun for my daily driver. I dont plan on going to the track or races with it.
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