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If Engine life is your biggest concern than don't tune or modify it. Any mod or tune will cause the engine to wear faster than a car running at stock boost levels.
Your about to get rapped by people on this forum because you didn't search.
Basically a few options for ecu tune: procede, Cobb, jb4 and active.
I listed those from best to last in the order I would run on my 335.
Currently running procede v4
Good luck
-Travis
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