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Old 22nd February 2019
03saab93arc 03saab93arc is offline
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Join Date: Jun 2018                                                
Posts: 12
Default Question about downpipe

I have the funds to finally get a downpipe for a 2.0T.

My question is will a 3 in catless downpipe throw any codes(i have a stage 2 tune from Brew City Boost?) If it does what is the fix?

Also, i have a 2003 model, i have heard that there are 2 02 sensors, and a 3rd bung for a temp sensor or something along those lines. What do i do with that?

Lastly, who should i get a downpipe from, OBX is $400, GS is $480 with shipping. The OBX dp looks really weird being that the o2 bungs are after the flex pipe, is that true?

Thanks guys
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Old 23rd February 2019
PeteyBoPetey PeteyBoPetey is offline
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Join Date: Dec 2017                                                
Location: Sydney Australia
My Saabs: 2009 Vector 2.0t Biopower
Posts: 47


I bought a 3" Krona downpipe from Brew City Boost. I was nearly going to buy the catless version, but I thought I better not in case they bring in emissions testing is Australia. It comes with holes for the O2 sensor.

Installed it, along with the O2 sensor. Occasionally I get a CEL and the code reads "Cat converter below efficiency threshold". I think this actually might be because I've been to lazy, and cheap not putting the colder spark plugs in and gapping them closer.

I kinda expect to get CEL with the mods I'm doing. If you're really worried about this happening with you, I think you can put a spacer in with the O2 sensor?. Someone else might chime in.

I haven't bothered fixing mine as I'm about to do the 19T, I'll do it all then
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