E70 X5M Catalytic Converters

[iamcpap]

Gents,

Feels like my cats are starting to let go. Getting that rotten egg smell and want to get ahead of the curve here.

Are people going catless when these things go? Really would like to avoid that since I don't want to smell like gas every time I drive the car, like my M3 did.

Are there any aftermarket cats, less restrictive perhaps?

Any insights are appreciated.

[coolmayank]

Originally Posted by iamcpap

Gents,

Feels like my cats are starting to let go. Getting that rotten egg smell and want to get ahead of the curve here.

Are people going catless when these things go? Really would like to avoid that since I don't want to smell like gas every time I drive the car, like my M3 did.

Are there any aftermarket cats, less restrictive perhaps?

Any insights are appreciated.

Which year is your x5m and how many miles ? Have you made any performance mods? How will the car pass the smog without a CAT

[m5james]

Catless with a stage 2 tune makes up for anything I might never smell because I'm always on the gas enjoying the new found power.

[saxonb]

Originally Posted by iamcpap

Gents,

Feels like my cats are starting to let go. Getting that rotten egg smell and want to get ahead of the curve here.

Are people going catless when these things go? Really would like to avoid that since I don't want to smell like gas every time I drive the car, like my M3 did.

Are there any aftermarket cats, less restrictive perhaps?

Any insights are appreciated.

Supersprint make secondary cats: https://www.supersprint.com/ww-en/bm...r-left.aspx#!/

[9vapors]

Or ya know, I'm selling a stock set...

[saxonb]

Anyone had a set installed just before the xpipe? I was thinking of installing some N54 secondaries there...