You can easily get some good cheap ones on Amazon.
I use this this one. Sometimes you can find it for around $80.
This is the one that I have:
https://www.amazon.com/gp/product/B07BHMFXMD/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1
The volume is adjustable because it comes with a two-piece baffle that you can remove. Option 1: Baffle in, 2: Baffle in but without the plug on the end, 3: No baffle.
For sound clips, look up "Ransoto Exhaust Grom" on YouTube and you'll find a few that show all options.
https://www.amazon.com/gp/aw/d/B07BHMFXMD/ref=psdcmw_404746011_t1_B07N494BRL Looks like this one not 100% sure though
Are you talking about this one? It does look pretty sharp.