NOT TRUE.. aluminum will do just fine just make sure you have the correct size then your OK....
Originally Posted by elp_jc
Just keep in mind we're supposed to use 'full stainless steel' rivets (per SOCAL), and they alone run $30
(plus rivet gun, or another $30).
I asked our friend SOCAL if we could use aluminum, since the rivets' only job is to hold tips in place (zero shear force, etc), but he never replied. Maybe somebody else can answer that. I want to remove the tips before powdercoating my muffler for extra safety, but not if it costs $60. Take care.