07 apex exhaust drone

That is a good question I have wondered that too. Here is what Yamaha's web site says. I am wondering where the titanium ends and the stainless begins if it does?

Lightweight rear-exiting titanium exhaust
The exhaust pipes coming out of the Genesis 150FI engine are configured in a 4-2-1-2 design. The exhaust, featuring titanium head pipes, adds to the engine’s higher output and also reduces weight.
 
I was able to stick a magnet on tip, muffler & single pipe to muffler. Is titanium or ss magnetic ?
 
most ss is not magnetic, although there are a few grades available that are. I dont think titanium is either (Y pipes)

I pretty much think the rest of the tailpipe/muffler is thinwall cold roll steel and it may be aluminized like all of the non-ss auto exhausts are.
 


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