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E36 M3 (1992-1999) {Euro - S50 B32 321hp @ 7400 rpm} {U.S. - S52 B32 240 hp @ 6000 rpm}
Total Produced: 71,212 - Years Produced: 1992 to 1999


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Old Tue, Jan-22-2019, 03:11:57 AM   #1
bmwstephen
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Default DEC Catalytic converters (CA)?

My stock cats have been long gone before it achieved 120K miles. It has since received aftermarket cats welded in place of the stock ones since ownership.

As I embark on its 4th smog, I can see those cats degrading as well so I am preparing to save up for a new set of cats down the road.

The OEMS are on backorder and expensive $1800+. However, I see supposedly direct bolt on ones from the mid pipe to catback from DEC which are CA approved.

anyone ever tried this set?
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Old Tue, Jan-22-2019, 04:14:31 AM   #2
bluptgm3
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Default Re: DEC Catalytic converters (CA)?

BimmerWorld has had them on offer for a few years now, and as you have stated, 50 state legal.


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Old Tue, Jan-22-2019, 04:36:29 AM   #3
wgknestrick
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Default Re: DEC Catalytic converters (CA)?

Quote:
Originally Posted by bmwstephen View Post
My stock cats have been long gone before it achieved 120K miles. It has since received aftermarket cats welded in place of the stock ones since ownership.

As I embark on its 4th smog, I can see those cats degrading as well so I am preparing to save up for a new set of cats down the road.

The OEMS are on backorder and expensive $1800+. However, I see supposedly direct bolt on ones from the mid pipe to catback from DEC which are CA approved.

anyone ever tried this set?
Get a Vibrant GESI fitted and don't look back

https://vibrantperformance.com/catal...a25c4313ffdb25
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Old Wed, Jan-23-2019, 12:28:08 AM   #4
Nate047
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Default Re: DEC Catalytic converters (CA)?

Vibrant cats are not legal in CA unfortunately... I'm not an expert but the DEC offering looks like it should work. Dunno where to buy them though. You can also consider these: https://www.magnaflow.com/products?partNumber=448690
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Old Tue, Feb-05-2019, 12:14:37 AM   #5
j0rdan J
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Default Re: DEC Catalytic converters (CA)?

Get the cheapest CA legal cats you can. I promise you will need to change them every two years before smog. They just don't last as long as OEM BMW cats.
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Discussing DEC Catalytic converters (CA)? in the E36 M3 (1992-1999) Forum - {Euro - S50 B32 321hp @ 7400 rpm} {U.S. - S52 B32 240 hp @ 6000 rpm}
Total Produced: 71,212 - Years Produced: 1992 to 1999 at BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3 | F80/X)