I have a 2004 wrx with the cobb ap .I have stage 1 right now and wanted to go to stage 2. I know I will need downpipe but does anyone know if I could use the bosal shorty downpipe? i have everything else but the downpipe. I live in ca and need at least one cat in place for all the tree huggers here, and for smog testing. Can anyone shed some light? I need more power!!!! :disco:

Yeah you'll be fine.

Any shorty will work...

I have the Bosal shorty, OEM center cat, and Cobb CBE.....excellent combo with great rumble...