Hi Todd, yes, still using it on my RV-8/20B.  The 2525XL is the model I used.  Only have a couple of hundred hours on it but holding up well.

Tracy

Sent from my iPad

> On Jun 19, 2016, at 13:18, Todd Bartrim <flyrotary@lancaironline.net> wrote:
>
> Tracy, are you still using the Aero Turbine 2525 muffler?
>  Is anyone else using it?
> How's it holding up?
> And any thoughts on the 2525XL with the built-in resonator?
>
> Todd Bartrim

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