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Originally Posted by seventythree
To update the rear bumper cover from 02 to 03, is it true that the muffler must be changed as well?
TIA
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As you probably know, the diffuser on the '03 and up is incorporated into the design of the bumper itself, whereas the aftermarket version simply attaches along the underside of the bumper on previous years. Jmatta is correct, the aftermarket style diffuser will not accommodate the PSE exhaust. Furthermore, there are some aftermarket exhausts that feature a "dual canister" design that hang too low to clear the add on diffuser as well. Such was the case with my exhaust.