Do aftermarket 200 Cell race cats w/secondaries removed throw Cel error codes?
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From: Southern, CA.
V12-Biturbo
Do aftermarket 200 Cell race cats w/secondaries removed throw Cel error codes?
I.E. ONLY running Primaries using 200 cell cats, will error codes be eradicated w/moving sensors further dwn after cat?
Thank you for your answers gents
This will possibly be done to my SL600!
More importantly will 200 Cell metal cats pass stringent CA Smog?
Thank you for your answers gents
This will possibly be done to my SL600!
More importantly will 200 Cell metal cats pass stringent CA Smog?
Last edited by Thericker; Aug 21, 2009 at 04:09 AM.
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new balance
Sean, you only have one set of cats, the ones that are righ off the turbos built into the downpipes. I put 100cel metal cats in and it didnt respond well for some reason. It was total seat of pants so no dyno numbers, i eventually just removed them entirely. If I were you get a whole new downpipe made in 3" with no cats, that way you can save your factory stuff intact for smog testing.
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From: Southern California
S600TT, R350
Sean:
200 cell will be bordeline on smog. You might or might not have CEL, some ECU revisions are touchier than others. Do not know why.
As far as power, maybe 10-15RWHP. Turbos hate any backprssure right behind them.
Do the tune............
200 cell will be bordeline on smog. You might or might not have CEL, some ECU revisions are touchier than others. Do not know why.
As far as power, maybe 10-15RWHP. Turbos hate any backprssure right behind them.
Do the tune............
Thread Starter
MBWorld Fanatic!
Joined: Feb 2004
Posts: 9,155
Likes: 20
From: Southern, CA.
V12-Biturbo
Sean, you only have one set of cats, the ones that are righ off the turbos built into the downpipes. I put 100cel metal cats in and it didnt respond well for some reason. It was total seat of pants so no dyno numbers, i eventually just removed them entirely. If I were you get a whole new downpipe made in 3" with no cats, that way you can save your factory stuff intact for smog testing.
I have a 9am appt Tues to see what can be done
(I know SL only has primary cat's, but posting in the Hotrod E55 section they have 4 as you already know, just trying to tailor the Q correctly)
Last edited by Thericker; Aug 21, 2009 at 04:35 PM.
Thread Starter
MBWorld Fanatic!
Joined: Feb 2004
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From: Southern, CA.
V12-Biturbo
PS..Sorry for jumping on you over Busa's S65 thread, I know you're a good guy, I just got caught up in the chatter
Last edited by Thericker; Aug 21, 2009 at 04:04 PM.
and I thought that was why most race cats state that they're legal in 49 states 
