make 225 sound better?

roll to the local and get single 2" with a turbo or a glass pack and dump it at the axle if you want the noise or take it to the bumper if you want it mellow.

or, you could get a complete kit from TTI and do it in your driveway

[URL]https://www.ttiexhaust.com/3-Slant6.htm[/URL]

I got that TTI 2.5" kit for my 1973 Duster a few months ago.

It is still in the box, not even opened once yet. It is my next planned project, to put it on.