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When we purchased our Sonic,in September, I really didn't like the cars driving characteristics. Way to much turbo lag, transmission downshifting when you didn't want it too...etc., etc. So, within two weeks I purchased the Trifecta economy tune...and loved it. I originally loaded the tune...

Has anyone taken a Trifecta tuned 1.4 Turbo Sonic through a State operated emissions test? If so...please share the results of the test and your thoughts on how it all went.

We just replaced our 2000 Cavalier Z-24, convertible, RV tow car with a new Sonic LT Hatchback, 1.4 Turbo. We love our new little car. The mods...we plan are different than most. If K&N makes an induction system I always upgrade my cars and this Sonic will get the available K&N kit. Then we...