anyone with stock headers + test pipes and catback?
 

I have headers and CB right now. Sounds great but drones slightly between 2-3K rpm. I'm thinking about putting the stock headers back on and replacing the catted midpipes with aftermarkets bypass pipes. Has anyone done this and if so how was the sound/drone? Exhaust vid clip would be nice.

I'm only doing this because I'm sick of looking at my check engine light.

Been there - read this text:

http://986forum.com/forums/boxster-cayman-parts-sale-wanted/73195-sale-hollowed-oem-exhaust-manifolds-complete-mini-cats.html