aresti 40
That's a nice lookin' airplane! If I didn't have a lon cold winter ahead of me I'd be getting one of those rather than Builfing an Ultra Sport 40+.
I'm a bit of a newbie, so forgive me if this is a dumb question, bit what is the benefit of the MACS muffler. I just put 7 flights on my trainer with a newly installed OS 46FX and it seemed pretty quiet already!