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      04-22-2020, 07:36 AM   #54
Desrste
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Drives: '16 428i GC. '08 535, '84 e30
Join Date: May 2008
Location: Greenville, SC

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Quote:
Originally Posted by MY86 View Post
Quote:
Originally Posted by Desrste View Post
My 330i is also a 12/2018 build... standard exhaust... just coding sport+ dramatically changed the car! I also did the exhaust valve mod, so my exhaust stays open in every drive mode. I'm going to code this tomorrow and try with and without exhaust valve mod and see if I can tell any difference.

Btw - anyone else notice the increase in the turbo blow-off fluttering sound after accelerating with sport +?
Hi,

How did you code the exhaust valve mod?
Not to hijack the post... full credit to the OP, g20beam for figuring out how to actually code the exhaust valve... and many other features as well 👍.

I did it the old fashioned way...

There are some good posts on this topic that I used. Apologies, I'm writing this on my iPhone so I don't know how to find the post and then come back to post it.

1. Start car.
2. Throw it into Sport mode and listen for the valve opening.
3. Unplug valve actuator on right side of exhaust while the valve is open.
4. I cut the thumb off of a rubber glove and put that over the actuator.
5. Gently pushed the plug back into the plug, being careful not to seat it and poke holes through the rubber.
6. Wrapped that with electrical tape to seal it off.
7. Threw on a couple zip ties to make sure it stays that way.

Valve doesn't know it's supposed to close so it is always open. Hope this helps.
Appreciate 2
g20beam467.50
MY8615.00