I noticed an exhaust smell whenever I warmed it up for 5 or so minutes. I [think] it was due to the liftgates' weatherstripping and/or the fact the tail pipes are tucked under the bumper. I installed a Flowmaster FX axial-back (not for this issue, I just wanted the sound!!)and the issue was resolved. I [think] due to the tail pipes now extending slightly past the bumper, the exhaust is no longer collecting in that space.
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