Did you use any penetrating fluid to loosen the bolts when swapping cats? Can you smell raw exhaust fumes? That is really the only thing I can think of as even if there was an exhaust leak, you wouldn't be seeing any white smoke.
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-320whp / 259wftlbs-
SP Rays -- RE-11s -- SpecialtyZ Tune -- Swift Springs -- Stillen 25R Oil Cooler -- Stillen G3 Intakes -- Berk HFCs -- F.I. 12" CBE -- Stillen Sway Bars -- Es14 Spring -- INGS+1 lip -- CF Spoiler -- GTR Start Button -- VLED Parking Lights -- PWJDM V2 shift knob
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