Exhaust Cutout
 

I am a subscriber to ECS’s weekly sale emails and I received one about exhaust cutouts. Do I need to get the dual ones, or can I put a single cutout before it splits off into the two pipes?
Do I need to re-code any of the exhaust sensors?
And finally what size do I need for the OEM exhaust on a 3.0?
Link to the site:
https://www.ecstuning.com/b-ecs-part...pdk=AAAABgQEAg


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I don’t recall the exhaust combining together on my M54 motors. I thought they are separate from head to the tailpipe. Heard of people adding cross pipes but not sure if on the 8 or the 6.

I meant like at the very end where it splits out to the mufflers. Now that I think about it, it’s almost impossible to fit one of those in that distance. Do I guess I only need a single one

To make any sense the cut out needs to be before the muffler. You would need two one for each bank (or add a combining y pipe and another to split back to the two mufflers. ).

I don’t know enough about exhaust systems to advise on if combining Into one pipe and splitting back would be a problem for the system to work properly and I would not recommend mixing the two banks together without somebody with history and experience doing exactly that procedure.

For best sound, where in the exhaust system would you suggest? I could do before the cat, not 100% sure about the resonator but maybe after it. I’m not sure if I should put it before the 1st muffler or not.

Before the cat would be very difficult and would sound terrible anyway. After resonator would probably be best IMO.

Before you take this route, have you performed the Golf Tee mod on the exhaust flap? Google it for an E46. I ASSUME an E46 330 and your x5 have the similar exhaust/muffler system where the flap inside in the dual tip opens only at certain RPM ranges to allow more air flow/better meaner sound... You can look inside your dual tips and see if the flap exists and or is closed. If you open it fully manually and put a golf tee in the vacuum line then you will like the sound more. But don't forget it IS just a 6cyl and will not bark like a 8 cyl

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Are you sure about that?

https://vimeo.com/354905171

Cut outs should be placed right after the cats, one for each bank.

It does sound nice. What have you modded? A factory M54 with factory exhaust is so quiet compared to this.
Mind you a V8 sounds still a bit throatier... This 6cyl sounds great for a 6 cyl.

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