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Mpe back to stock exhaust
Hi has anyone changed from mpe back to stock system.
I understand the standard exhaust valves are vacuum operated opening and closing depending on load driving mode etc.
Is this control system removed when fitting mpe how difficult would reverting back be.
I ask because I have a Wagner 300 cell downpipe which damaged the o2 sensor due to strain on cable and an mpe which now has a lovely rattle from the silencer.
I'm wanting to fit a stock system and catless downpipe as it will sound similar and actually give a power gain.
Pretty disappointed with the Wagner downpipe and mpe considering the cost of both items
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