Drivetrain Does the F56 run two cats?

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Jul 25, 2017 | 02:04 AM

Tweedbean

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Does the F56 run two cats?

Hopefully a simple one to answer, I know there is cat in the down pipe, is this a secondary cat in the centre pipe ahead of the centre muffler?

Jul 25, 2017 | 03:54 AM

njaremka

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Item 1 in that diagram is the cat and resonator section.

Jul 25, 2017 | 04:55 AM

Tweedbean

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Quote:

Originally Posted by njaremka

Item 1 in that diagram is the cat and resonator section.

Thanks and then there's one in the downpipe, didnt realise this as my car had an aftermarket exhaust when I purchased it.

Jul 25, 2017 | 05:57 AM

vetsvette

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Only the DP CAT is monitored, so it won't throw a CEL if the 2nd CAT and/or the resonator are removed.

Jul 25, 2017 | 06:47 AM

-=gRaY rAvEn=-

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For the cost of a JCW exhaust with electronic cut out, I'd opt for that instead.....nice bang for the buck, or at least was when I last checked 2 yrs ago.

Jul 28, 2017 | 06:25 PM

vetsvette

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Quote:

Originally Posted by -=gRay rAvEn=-

For the cost of a JCW exhaust with electronic cut out, I'd opt for that instead.....nice bang for the buck, or at least was when I last checked 2 yrs ago.

The JCW Pro exhaust still has the second cat, but no resonator.

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