I've been reading on this a bit but still dont understand everything that would be needed.

 

I found an ad for WRX factory exhaust "fits 02/03 wrx.. full exhaust system including up-pipe to muffler.. very good shape, price is firm.. "

 

$100

Does that sound like everything I need? except the muffler I guess?

 

Chris

The downpipe shold fit. As well as the second DP piece and the mid pipe (although the mid pipe may require a custom hanger.

 

Not sure if the tailpipe /muffler piece will fit or not.

 

The uppipe won't fit as far as I know. Main reason being that the flange that the turbo mounts on is different. Now if you were to change from the VF11 to a TD04, you may have better luck there, but I don't know if the EJ22 uppipe is more like the EJ20 or if its integrated like the EA82

I am considering a tdo4 swap, wondering if this wouldnt make it easier.

I understand the wrx up-pipe has a 3rd cat in it

 

I dunno I guess my pipes are 2" and the wrx is 2.25", seems like alot of work for not much gain. A custom 3" is sounding a better option.

you will have to lenghten the mid pipe section by at least 6 inches or so.... im not sure if the down pipe sticks farther out than the stock y pipe does on the na cars...... i tried to fit one and the flanges are different, and the mid section is seriously short........ but should be easy to lengthen..... just my .02

heres what I have found out, turbo legacy and wrx exhaust are the same diameter etc. Even the left side manifold is the same part #. We both have cats in DP, the WRX however has a cat in the header. No real performance to be gained.....anywhere. Well except that now I will replace my 12 yr old exhaust w/ a 2mo old exhaust, not bad.

I am going to cut the cats out of the wrx system and install it. Then I will put the nice new cats in my old midpipe so I can swap it in for smog testing.

 

Caleb, you just answered my question.