The ticket for a non visual converter omission is to just knock out the
stone, and bolt it back up.

Contrary to the posting below the Van will breath on heck of a bunch
better without the pin holed converter restriction in the way of the
exhaust flow.

The Van not only will show a much improved performance, it will give a
little better fuel mileage, and the engine  ( if in  proper tune and all
the electronic engine management item's are working properly ) will pass
the mandated emissions tests.

My converter's are all gone.

Gutted.
Visually they are still in tact.

And the Van's pass with flying colors.

A measurable improvement in engine performance over having the pin holed
stone in the way.

<<Note that some states enforce the fed regs which says if shipped with
cat must have a cat. (all passenger vehicles sold in the US and Canada
after a certain year in the 70s) If in an air state you most likely will
not pass test emissions or visual.
jimt
On 7/18/05 3:05 PM, "John Bange" <jbange@GMAIL.COM> wrote:
Performance, same or maybe slightly better. Mileage, probably no
significant change. For emissions, your NOx and carbon monoxide output
will go way up. Generally you won't see any significant improvement in
power when removing the cat unless you also do something that NEEDS the
extra flow, like porting or bigger valves.
On 7/18/05, Christopher Gronski <gronski@gmail.com> wrote:
This is an poitically incorrect question but I am going to ask it
anyway. What happens if you run your vehicle without a catalytic
converter installed? Assuming you had a bypass tube installed would you
just install your exhaust sensor there? What would the effect on
performance and mileage be? How much would your emissions go up?
Thanks,
Chris>>