Will a Gen 2 slip on exhaust fit a Gen 1?

Hi all, new 2001 FZ1 owner here with stock exhaust. I'm looking for a new or used slip on muffler only, I like the looks of the stock header. There are a lot of nice used Gen 2 slip ons on eBay,
but not many aftermarket for the Gen 1. Anyone know if a Gen 2 slip on will fit on Gen 1 with out a bunch of mods?
Thanks. :)
 
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I don’t know, but I can tell you that the M4 pipe for the 2004 FZ1 looks really good on my bike. Also the quality is amazing.
 

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I would imagine the exhaust diameter on Gen 1 & 2 would be the same. Best of luck on your slip on choice. I went with the 2 Bros. A bit loud. But, looked great & build quality was first rate.
 
If you haven't found anything yet, I had a Holeshot slip-on on my Gen I. I also used the Holeshot Stage 1 jet kit and timing advancer. I had a few questions, and Dale was great! From this Link, scroll down to Exhaust, Jetting and Tuning through 2005. The slip-ons are there (low and high mount, polished or black.

It's not a high-tech looking slipon, but I liked the exhaust note and the way it looked on my blue 2005.
 
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