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      04-24-2009, 05:14 AM   #15

Drives: BMW M4 GTS
Join Date: Jan 2009
Location: Germany

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The Akrapovic Evolution System is available with and without Lambda adapters. Without adapters normally ECU programming is required to avoid CEL, so this is an option for those who want to do ECU tuning anyway. The System with adapters comes for those, who do not want to modify ECU, but therefore it is about 300$ more expensive. The reason for this pricing is, that the adapters are so called micro catalyzers. They contain a ceramic element and so you will not get the "Check Engine Light"! I will attach pictures to give you an impression of the adapters.

Originally Posted by dogears View Post
I would like to know how Akra is avoiding CEL with no primary cats. My sources tell me Lamda simulators do not work on the M3. Maybe for a short time and then code...... Just saying. Maybe these guys are on to something. Maybe it will code. Please keep us posted.

System is gorgeous btw.
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