Tailpipe Interchangeability Question

T4-2142 is a Maremont number for the tailpipe for 1967-1969 Barracuda and 1967-1971 Dart (including Demon) and Valiant (including Duster and Scamp) with six cylinder. Chrysler part number for this tailpipe is 3404300. The pipe changed when the size increased in 1972 from 1-3/4" to 1-7/8" (same as 318). 1973-1976 A-bodies also included the optional noise reduction package with resonator in addition to the non resonator tailpipe. The non resonator tailpipe configuration changed again in 1974-1976. 1960-1966 was a different tailpipe.