Buy invidia downpipe, buy oem o2 sensor. Trash what ya have.
Front should be replaced with a quality wideband.
Rear can simply be a oem since it's downstream.
If no one knows, what's the recommended dp that will pass emisiontest in cali? Many thanks everyone!
Buy invidia downpipe
Sounds like a plan. Invidia downpipe and oem sensor. Thanks you guys!!
Wait, so I'll need 2 bungs for the sensors? Wide band and the OEM o2?
On mine it is the rear o2, but strangely located up top next to the turbo instead of by the wheel like others.