purging

Ok, everyone knows that if you run nitrous, you have to purge the lines. Now, if someone wanted to race with the nitrous, but not have anyone know about the bottle, they couldn't really purge it without the loud noises and nitrous geysers. What if you routed the purge valve into the exhaust...

Wattup. I really dont want nitrous on my car, but is it possible to set up a C02 tank that you can purge...just for show/looks? Im not really sure if this would belong here, since it has nothing to do with nitrous. :confused:

Here is a pic from Daytona that a friend of mine took. Ill get some better ones up when I get my car back monday.