Ive had my DDP for almost 3 years now.
I love the wastegate dump noise and without it, it feels like something's missing.
I recently installed my new quiet catback and swapped out my DDP for my spare HKS 3" DP just to enjoy silence for a little while.
I can definetly notice the power difference from one downpipe to the other.
The DDP is definetly going back in, i just thought id take a crack at fixing its quirk.
So the DDP leaks from a poor seal of the exhaust hole and the wastegate hole.
This causes a exhaust leak under normal operation out the dump tube. This also increases drone under cruising and such.
If it could be sealed, it would be golden.
Here's a couple of my ideas.
Not too sure on a good solution here. Was thinking about some kind of exhaust crush sealing material to seal the two sides.
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This was my genious idea, but maybe a little complex.
Y-pipe with a vacuum operated cutout.
A bunch of audi's have this vacuum operated exhaust valve on the rear muffler to make a more aggressive tone when you're on it. I work at an audi shop, so i thought maybe i can score one somehow.
Having a recirc and open WG option at the touch of a switch seems pretty nifty.
This is the valve on an R32. same shit
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This may be my best solution.
I HAVE an electric cutout right after my downpipe.
Right now i'm running the HKS 3" DP and when the cutout is open, i cant hear the wastegate. I don't like that.
If i use my DDP and lets say its recirculated back into the exhaust about foot or 2 away from the cutout..Will it sound like an open wastegate dump with the cutout open?
If so, thats my perfect solution.
Thoughts, comments, suggestions appreciated.
Discuss.
I love the wastegate dump noise and without it, it feels like something's missing.
I recently installed my new quiet catback and swapped out my DDP for my spare HKS 3" DP just to enjoy silence for a little while.
I can definetly notice the power difference from one downpipe to the other.
The DDP is definetly going back in, i just thought id take a crack at fixing its quirk.
So the DDP leaks from a poor seal of the exhaust hole and the wastegate hole.
This causes a exhaust leak under normal operation out the dump tube. This also increases drone under cruising and such.
If it could be sealed, it would be golden.
Here's a couple of my ideas.

Not too sure on a good solution here. Was thinking about some kind of exhaust crush sealing material to seal the two sides.
----------------------------------------------------------------

This was my genious idea, but maybe a little complex.
Y-pipe with a vacuum operated cutout.
A bunch of audi's have this vacuum operated exhaust valve on the rear muffler to make a more aggressive tone when you're on it. I work at an audi shop, so i thought maybe i can score one somehow.
Having a recirc and open WG option at the touch of a switch seems pretty nifty.
This is the valve on an R32. same shit
--------------------------------------------------------------------------


This may be my best solution.
I HAVE an electric cutout right after my downpipe.
Right now i'm running the HKS 3" DP and when the cutout is open, i cant hear the wastegate. I don't like that.
If i use my DDP and lets say its recirculated back into the exhaust about foot or 2 away from the cutout..Will it sound like an open wastegate dump with the cutout open?
If so, thats my perfect solution.
Thoughts, comments, suggestions appreciated.
Discuss.
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