My friend had purchased new tips from dealer in about '88 also for his '69 road runner. He would wax them, hoping to preserve them. He started noticing they were starting to rust in about 6 short months.Never heard of Tips that rusted even in the Soupy northeast where I grew up. Well I haven't completely grown up, but have not heard of rusty tips. Mine takes the box tips that were purchased from Dodge in 88. Zero care over the years. No rust.
X2accurate exhaust has stainless