What i may do, if it ends up completely breaking, is crimping a wire cap on it, at least until the dealer or morad can get me one that is in good shape.
After looking at it more carefully i believe the culprit is the N* TB. The riv's TB, at least on the 96, uses the cylindrical pellet at the end to hold it in place, where the N* appears to use a more rounded end piece. the result of mixing the two seems to angle the cylindrical pellet in a way that puts stress on the wire and over times causes strands to break. Just a theory, maybe someone with a N* can confirm their's is holding up after 3+ years.
Thanks for your help Albert.
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1996 with 254k miles, L32 4" FWI -> ported N* -> Ported Gen V w/3.0" Pulley, Stage 3 Phenolic I/C, ZZP FMHE, 1.84 RR, Headers and 3" pipe to mufflers, F-body brakes, and lowered on Eibachs. -RIP
AMG C400 White on black. Stage 2 w/E30 - 11.9@117 -daily