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    catalytic options

    if i switch to a single inlet/outlet converter is it going to change the sound of the exhaust to something less "bmw-ish". im just trying to find the simplest solution to my smog problems.

    #2
    oh and should i go with a 2.25" inlet/outlet or a 2.5" ?

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      #3
      and should i get one rated for 4250lbs or 6000lbs . i'm thinking the 6000lb rated converter will have a bigger honeycomb core to flow more cfm's and have cleaner emissions, no? they are the same price, $55 each on summit.

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