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Milltek exhaust - full system
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05-23-2019, 03:47 PM
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doughboy
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Drives: 2018 M2 Comp 6MT
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Yep "cat back" means OPF back.
But OPF is the most restrictive part of the system. I've added OPF delete with hi flow cats in place of OPF. No titting around and no CEL.
No need for DPS unless you want stage 2 power.
Appreciate
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MarkusN54
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