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The two secondary cats share one big housing. Are they fully separated on the inside or is it shared space internally, equalizing the asymmetrical pulses and giving it somewhat of an X pipe effect?
Has anyone cut open the secondary cats or at least looked down the holes?
Dude. The cats are separate. What you’re describing is the resonator.
The resonator is the next thing downstream and I know it has an H pipe in it.
The primary cats are obviously separate. The secondary cats are butted together in one shared housing. I'm just asking for someone that has physically seen inside to report what they see, not internet heresay. Just what someone has seen with their own eyes.
Yes the cats are separate. No, they don’t need to be cut up to verify. They just are.
That pic shows the secondaries external housing is joined so it does not prove either way. Yes there are two bumps but the inlets and outlets could be joined because the external housing is. They probably are separate but I want to know for sure, not a guess or presumption. Heaps of people have done secondary cat delete. My question is to one of those people to look down the holes.
Last edited by bradsm87; Jul 31, 2019 at 05:08 PM.
Nice. Those pics inside that thread are good. Pretty hard to know if a thread debating whether to delete secondard cats or resonators would have pics of chopped sec cats inside though.
Of course it's a 5 second search if you remember the thread to look for.
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren
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