Need help passing emissions with Long Tube Headers!




we’re pretty lucky that every single emissions control system in the car is bypassable.
Last edited by coupesedan; Apr 9, 2020 at 02:23 PM.
so you’re saying if smog shop plug in your obd2 and see all monitors are ready then you’ll pass? Even with tune ECU?
Such as these monitors showing all green can get you a pass?
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Last edited by coupesedan; Apr 11, 2020 at 12:47 PM.
The Best of Mercedes & AMG





