WRX Exhaust Layout
 

FYI: Here's the layout of the stock WRX Exhaust.

http://www.doink.net/images/misc/wrx-exhaust.gif
(Props to the guy on NASIOC (I don't remember who it was) that drew this up, it looks good!)

FYI: The Vishnu exhaust replaces turbo-back like this:

turbo -> downpipe (no cat) -> mid-pipe (cat and resinator) -> muffler -> tip

the downpipe is longer than the stock one, the mid-pipe replaces bothe the mid and rear pipes, and the pipe for the muffler is way different.[/img]

Ssoooo.....A cat-back exhaust replaces the rear exhaust and muffler?

So if you were to get a cat-back you would later then upgrade the midpipe, downpipe, and uppipe?

And the turboback exhaust replaces up to the up-pipe? or the downpipe?

Thanks

pretty sure it's downpipe.

and look at the up-pipe precatalytic convertor!,, man what was subaru thinking, that's like 8 horsepower i think from what i've read, and if you gut your own stock pipe they can't tell when you take it to the dealership i think.

WRX STUFF
 

Check out this guys cool site he's the one that did the exhaust diagram he goes by mattr762 on the i-club, he's got lot's of good info and links for the WRX http://www.mattrandolph.com/ look under his personal: "wrx stuff"