This type of muffler will add NO power to the Vanagon, although it will
change the sound.

I'm not sure Gary is implying that it will, but just in case someone THINKS
it might, I want to point out that that is wrong.

As long as the small diameter exhaust maniflods with their large bends and
unequal length come off the heads, adding a larger diameter muffler and cat
will not improve performance.

The stock muffler with it's straight through design is probably the LEAST
restrictive part of the exhaust system!

As for the Jacobs ignition system, this won't add HP either. Unless the
engine's ignition system is malfunctioning, this unit won't add any extra
performance either

James