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Just would like to find out if any one else has noticed there cars missing when it is warm at a stop light, not as much as you can feel it like when you have a dead cylinder, but you can her it in the exhaust. 2006 gt borla stingers, with or with-out tune it will do it.
With less back pressure there is usually less power under 3 grand. A tune is the best thing you can get to fixing this problem but i think it is due to the overlap in the cam. Actually get a supercharger, then you will be good