Forum for the entire range of BMW electric vehicles
BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read
BMW i8 Forums BMW i8 General Discussion

Post Reply
 
Thread Tools Search this Thread
      04-23-2020, 04:05 AM   #1
Seleban
Registered
0
Rep
2
Posts

Drives: 2019 BMW i8 Roadster
Join Date: Apr 2020
Location: MANCHESTER UK

iTrader: (0)

Garage List
i8 Exhaust

Does a UK i8 2018/19 have an actuator valve and can it be set to be permanently open like the one in the You Tube video by Pats Garage.
Appreciate 0
      04-25-2020, 09:03 PM   #2
P.K.
Enlisted Member
3
Rep
34
Posts

Drives: Grey BMW i8
Join Date: May 2018
Location: Victoria B.C.

iTrader: (0)

Garage List
There are a few reasons for the exhaust restrictor. First, it keeps the exhaust in the system to preheat the "cat". Second, it keeps the exhaust note subdued. Stand on it in sport mode with a warmed up "cat" and the world gets to hear the raging 1.5 turbo blended sound of the ICE. Hoh hum! Well not exactly - they hear that sound augmented by the exhaust speaker doing its best to sound like ... an engine? On the inside, the driver hears a bit of 3 Cyl augmented by the full symphonic sound system version of a powerful engine. Being performance minded, I have removed the 7 Lb audience speaker and replaced the super heavy original exhaust, "cat" back with a stainless light weight, high volume system, still maintaining the "cat" preheat function- the "audience" gets a real experience. Seems to be popular? I certainly wouldn't recommend one of those very pricey, beautifully built tiny muffler systems that look great but sound terrible in my opinion. I still get the interior drama effect, but with the window down a bit I get a kind of half a turbo Porcshe sound. I come from an NA Ferrari V12 so I'm a bit spoiled. A quarter of the Ferrari, half of a Porsche blender. Progress, I suppose? Your question specifically - both solutions work- pull the fuse in the position of choice or pull the joiner link at the actuator - I didn't try just disconnecting the wire. I really doubt this would create a code? If it does, reconnect it. The BMW police won't call you on this.
Appreciate 0
      06-09-2020, 11:59 AM   #3
patsgarageonline
patsgarageonline.com
United_States
100
Rep
170
Posts

Drives: BMW i8
Join Date: Feb 2019
Location: Eldersburg, MD

iTrader: (0)

Quote:
Originally Posted by Seleban View Post
Does a UK i8 2018/19 have an actuator valve and can it be set to be permanently open like the one in the You Tube video by Pats Garage.
Yes, it has an actuator valve, but the UK models in late year produced i8s have a particulate filter built into the muffler. Many i8 owners have reported that after setting the exhaust valve to open, they notice no change in sound. This is due to the particulate filter.
__________________
I daily drive my BMW i8 and enjoy doing my own service. If you're interested, please follow along on my journey to maintain and improve my i8. http://patsgarageonline.com
Appreciate 0
      06-09-2020, 12:03 PM   #4
patsgarageonline
patsgarageonline.com
United_States
100
Rep
170
Posts

Drives: BMW i8
Join Date: Feb 2019
Location: Eldersburg, MD

iTrader: (0)

Quote:
Originally Posted by P.K. View Post
I really doubt this would create a code?
Pulling the connector to the actuator will cause a check engine light.
__________________
I daily drive my BMW i8 and enjoy doing my own service. If you're interested, please follow along on my journey to maintain and improve my i8. http://patsgarageonline.com
Appreciate 0
      06-09-2020, 08:07 PM   #5
stressdoc
Moderator
stressdoc's Avatar
Dominica
616
Rep
10,854
Posts

Drives: BMW i8; Toy 4runner TRD pro
Join Date: Jun 2005
Location: Waco TX

iTrader: (0)

I like the idea of 7 lbs. weight reduction - some DIY for external speaker removal would be helpful.
Appreciate 0
Post Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -5. The time now is 04:56 AM.




bmw
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST