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DIY: OEM x-pipe secondary cat removal/gut
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03-22-2011, 11:32 PM
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alpine92m3
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Drives: 2008 AW e92 m3 coupe
Join Date: Mar 2011
Location: usa
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hey i'm thinking about doing this mod! but.. i have already taken out the resonators.. do you think if i do this mod will i run into a cel issue>? and how is the idle is it any different ? and will u pass inspection ? or emissons ?
Appreciate
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