I'm a lifetime racing guy though a Newbie bus guy.

I could be wrong, but to me a quiet pipe increases back pressure and  
reduces mileage.

Again, Newbie-to-bus comment but I'm all ears if wrong on a Vanagon.

  EW
  Eric Wunrow Pictures
  85 S Union Blvd, #Q123
  Lakewood, CO 80228

  303. 988. 8717
  EricWunrow.com (soon!)



On Jul 16, 2013, at 12:09 PM, Jaime Forero wrote:

I recently installed a new engine and bought a muffler an complete  
exhaust
system.  All working as it should but at cruising speed, 60-70 MPH.  
There is
quite a bit of noise from the muffler and coupled with the noise from  
the
tires it tends to drive me nuts. Any ideas on a quiet muffler?  I  
checked
the usual parts houses on line and there seems to be only 2 different  
types
of mufflers and I have one of them.
Cheers
Jaime