[Vwdiesel] Exaust

[James Hansen]

There's a lot of whistle.  The only problem with straight pipes I have
encountered, is harmonics. It's fairly easy to get a weird harmonic inside
the cabin that just thrums.  Outside isn't bad, but inside is not nice.
I've had straight pipe on my 81 Jetta, the front seats were fine, the rear
seat area had an exhaust harmonic that was unbearable.  Weird thing was, it
wasn't loud in the front at all.  Had to put a resonator in, that fixed it.
Were this my decision, I would install a free flowing muffler right away so
I wouldn't have to monkey with it later.  A dynomax on my 97 Passat tdi
works well, there is some whistle, but no reverberating cabin noise at all.

An absent muffler is not legal.  The person looking at it, needs to see a
muffler, even if it is a glasspack.
-james

> -----Original Message-----
> From: vwdiesel-bounces at vwfans.com [mailto:vwdiesel-bounces at vwfans.com]
> On Behalf Of William J Toensing
> Sent: Friday, September 03, 2010 9:39 PM
> To: vwdiesel at vwfans.com
> Subject: [Vwdiesel] Exaust
> 
> In replacing an exhaust, I think what I would try would get a flex pipe
> sized to the exhaust manifold or header, then run a copper straight
> pipe sized to the outlet of the  flex pipe & run without a muffler.
> Then if to noisy, splice the exhaust pipe with a straight thru or
> Hollywood muffler. Should be able to do that for far less than $150.
> Previous discussion on this subject said a turbo would quiet the
> exhaust enough to be legal. Whether this would work on a NA diesel I
> don't know. Has anyone tried this? Comments.
> Bill Toensing, Nevada City, CA
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