Divorced Downpipe Questions

[MKIIITurbo88]

Hey all -

I have a quick question in regards to the BIC DDP. Due to the design of the CT26 turbo exhaust housing with a conjoined turbo outlet / wastegate outlet, you need to have a 'flap' to separate the 2 exhaust flows. My question is, does this 'flap' truly separate the two systems, or does it sound like there is an exhaust leak due to the turbo outlet gases exiting out of the divorced pipe? Would it be better to weld a separator inside the turbo housing? Attached are images of the DDP flange and the Turbo outlet.



Thanks,

 

[DeMoN2318]

It doesn't seal perfectly but it is pretty dang close. I have a DDP and you can hear a small leak when the engine is cold but once it gets hot it seals.


Here is a thread that talks all about it
http://www.supramania.com/forums/showthread.php?114441-DDP-Leak-Solution-Ideas-(PICS)

 

[MKIIITurbo88]

Thanks a lot DeMoN2318 - That's exactly what I was searching all over for.