[Vwdiesel] needing muffler recomendation for a 1.6 na motor

[William J Toensing]

I don't have any recommendation for a muffler but I was wondering whether a straight pipe would make the car to loud. Has anyone tried it?The Argosy motorhome I once owned had a straight pipe but had an Isuzu turbodiesel engine. I was told the turbo quieted the exhaust to the point where it was legal. Would a straight pipe help or hinder fuel economy? My Isuzu powered 26 foot Argosy motorhome got fantastic MPG, up to 17 MPG. It had a Chevy 1& 1/2 ton chasses with a GM turbo-hydromatic 400 coupled to a gear vendor 2 speed auxiliary transmission. However some engines need some amount of back pressure to function most efficiently. Do our na & TD diesels need this or is the less back pressure the better? It has been my experience that diesel mufflers tend to last indefinably in the Calif. environment. Comments?
Bill Toensing, Nevada City, CA