Universal and Direct fit Catalytic Converter

22
3
3
Buick Ownership
2011 Buick Lacrosse
I have a question has anyone used a universal catalytic converter on their 2nd gen lacrosse and the codes stop coming up. Or is everyone using the direct fit.
 

MelsRegal

Full Member
2,113
115
63
Buick Ownership
Regal GS 2017
Fitment has nothing to do with codes. It refers to whether the inlet and outlet are the same diameter as the original and the unit is the same length as the original and goes in without modifications.
 
22
3
3
Buick Ownership
2011 Buick Lacrosse
Well i have heard others say that they have replaced the cat and 02 sensors and still have the codes reappear. I was just asking if the cheaper rout would work. if not I guess I have to come out of the pocket.
 
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