1ST Resonator or Catalytic Converter?

[kerisabe]

I went to my muffler shop today, which did my custom dual all the way exhaust with a high flow catalytic which replaced the "1st Resonator" or "Cat" that they took off last week.

I came back, and told em that I want the high flow cat off.. cause that thing replaces my old "cat" which everybody here says the 1st resonator. So which means, I want my 1st resonator off.

But from what i've gathered here in the forum, u guys say that the cat in E46s are built into the headers? The guys at the shop told me those are the Precats... and the cat is actually the 1st reso.

Im confused now, I just want a confirmation here, TIA

[Mteknic330ci]

There wrong, stuiped muffler shop.. :banghead: Cats are in headers thats why 02 sensors are before and right after them. end of story.

Am i wrong?

[vmwerks]

No you're right the only cats are in the exhaust manifolds... your muffler shop is LAME

[JC7727]

lol, yea precats come after the cats :spit: their are 2 cats in the e46, both built into the headers, one cat for 3 cylinders the other cat for the other 3, their are 2 resantors and a mufler in the exhaust system.

[crazy1323]

i have both resonators cut out and have based emmisions

[vmwerks]

Resonators do nothing to emissions...

[kerisabe]

Ha ha ha... I guess I've been havin 2 cats in my car for a lil bit more than a week :banghead: lol.. the stock one..and the high flow one in replacement of the 1st resonator.

Finally I got the high flow off today, the Dinan sounds badass now :thanks: