Joshua Tuano
Verified Purchaser
This catalytic converter is the secondary cat that comes after the first two cats in the Acura TL. This is a similar setup to the other Honda V6's. This catalytic converter won't throw any codes (at least not in my model) because it's not attached to any O2 sensors. I just replaced mine since my old cat was starting to rust over.I had no issues installing this, it lined up directly with my exhaust. I don't necessarily consider this a "crucial" part since this cat won't throw any codes, and it's "EPA-compliant." I live in Texas so emissions aren't really a big deal here if you aren't throwing any codes.The honeycomb on the inside seems to be holding up. It's not as expensive as OEM because there aren't as many valuable metals in this cat (which is fine, that's how EPA-compliant cats are), but it functions as it should.