After a fuel stop a couple states and 100 miles from home my van  would
only go 18 up hills and 51 down.  I was on the interstate and  it was around
midnight.  With a 70 mph speed limit and 4 bikes  covering the tail lights
while big trucks were hauling a** behind me I took the  next exit.  I limped it
home by avoiding highways on my GPS and instead of  getting home at
midnight I was home at 430 am.  I had just replaced my fuel  pump and filter and
started with another new filter to no avail.  I removed  my cat and it was not
clogged at all but my van ran fast with it out.  I  took my muffler out and
it looked fine going in but after removing the tail pipe  a baffle had come
loose and was restricting out flow.  A hit with a big  screw driver set it
loose.  I had about 30 K miles and a bit over 4 years  on the entire
exhaust.  I purchased it from small car.  I called them  and even though the
warranty was prorated after a year for the next 5 they were  very generous in
meeting me at about half way.  I had it shipped with all  new hardware gaskets
and O rings and it is working great now.  It is all  stainless and was
slightly different than the one it replaced so it was a new  generation.

I have 1 of the 1st 2007 drive by wire Subaru engines conversions.  A  few
months ago when the plate that the old gas pedal attaches to in the engine
compartment broke Small Car sent me out a new and improved one that was
thicker  quickly and without charge.

Just wanted to share my experience and my satisfaction with one of our
vendors.

Maybe someday when the Subaru diesel hits these shores and parts are easier
 to obtain I will upgrade again.

Pat
in SC near Charlotte NC