Quote:
Originally Posted by MinnesotaM3
I have a X5M with oem gutted cats with Velos personal tune.
The tune is not hiding my 02 p0420 bank one cel.
Thinking about doing the spacer fouler plug to separate
The 02 farther down. Anyone know which side I need to do?
Passenger or driver side?
Btw I replaced all 4 02 hoping the velos tune would remove it but it hasnt
|
You need to add them to the passenger rear 02 according to your code. Just an FYI w the catless downpipes the rear spacers kept the check engine light off for around 500-1000 miles before the light tripped again.