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The BMW Range
5 Series
E39
Removing of Catalytic Converter
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<blockquote data-quote="aliris" data-source="post: 436391" data-attributes="member: 13454"><p>I believe that the backpressure from the restrictive cat converter in the header/manifold and the resonator plays a part in how the auto gearbox behave. One of the option is to reinstall the straight thru pipe and get somebody who can tweak your auto ecu or get a high performance cat with the like from miltek or magnaflow</p></blockquote><p></p>
[QUOTE="aliris, post: 436391, member: 13454"] I believe that the backpressure from the restrictive cat converter in the header/manifold and the resonator plays a part in how the auto gearbox behave. One of the option is to reinstall the straight thru pipe and get somebody who can tweak your auto ecu or get a high performance cat with the like from miltek or magnaflow [/QUOTE]
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The BMW Range
5 Series
E39
Removing of Catalytic Converter
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