Mild 2 wild?
Thread Starter
Pro
Joined: Mar 2021
Posts: 627
Likes: 417
From: Virginia, Lynchburg-adjacent
Keep in mind that your goal is not to "keep the valves open" but rather to achieve what you perceive as a louder exhaust. Louder than ......? With the engine/shift setting to tour, the car will go intoV4/ AFM mode. It will close the pair of AFM valves in the exhaust system, as well as the exhaust flow control valves. If you find a way to keep the exhaust flow control valves open, will it be louder, or will it make an unpleasant sound?
Melting Slicks
Joined: Apr 2021
Posts: 2,761
Likes: 2,332
From: Simi Valley, CA
2022 C8 of the Year Finalist - Modified
You already have two strikes against you - Corvette Mods is a scam shop and Mild 2 Wild doesn't work on a C8. There is another lengthy thread on the forum about just keeping the valves open all the time without getting a CEL. I forget the name but you can search for it. Has multiple pages of things others have tried. Turns out that isn't easy either, but you can try. The best solution is find an aftermarket exhaust that has the sound you like,
Thread Starter
Pro
Joined: Mar 2021
Posts: 627
Likes: 417
From: Virginia, Lynchburg-adjacent
Update
Disconnected all 4 valves, keeping them open at all times. Result: not loud enough for me, and any improvement wasn't significant enough to pursue further.
That muffler, though seemingly simple internally, must be very restrictive!! Biggest change was the odd exhaust sounds if it goes in V4 mode.
Cleared 10 codes. Time for another solution.
Something on my wish list for an "intelligent" upgrade is a *true* stealth startup. It's the loudest when I'd prefer it to be the quietest 🙄...
That muffler, though seemingly simple internally, must be very restrictive!! Biggest change was the odd exhaust sounds if it goes in V4 mode.
Cleared 10 codes. Time for another solution.
Something on my wish list for an "intelligent" upgrade is a *true* stealth startup. It's the loudest when I'd prefer it to be the quietest 🙄...
Melting Slicks
Joined: Apr 2021
Posts: 2,761
Likes: 2,332
From: Simi Valley, CA
2022 C8 of the Year Finalist - Modified
The startup is equally loud in any mode, as the valves are full open and the rpm's are high for about the 1st 30 seconds. Not sure how you'd deal with that.
Race Director
Joined: Feb 2005
Posts: 10,569
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From: A sympathetic, well-meaning, elderly man with a poor memory
St. Jude Donor '07-'08-'09-'10
Race Director
Joined: Mar 2007
Posts: 11,463
Likes: 8,635
Disconnected all 4 valves, keeping them open at all times. Result: not loud enough for me, and any improvement wasn't significant enough to pursue further.
That muffler, though seemingly simple internally, must be very restrictive!! Biggest change was the odd exhaust sounds if it goes in V4 mode.
Cleared 10 codes. Time for another solution.
Something on my wish list for an "intelligent" upgrade is a *true* stealth startup. It's the loudest when I'd prefer it to be the quietest 🙄...
That muffler, though seemingly simple internally, must be very restrictive!! Biggest change was the odd exhaust sounds if it goes in V4 mode.
Cleared 10 codes. Time for another solution.
Something on my wish list for an "intelligent" upgrade is a *true* stealth startup. It's the loudest when I'd prefer it to be the quietest 🙄...
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E-Ray, 3LZ, ZER, LIFT
Joined: Sep 2007
Posts: 35,067
Likes: 12,429
From: NE South Carolina
SIDEBAR
The C8 NPP fuse is 3 pronged, multfuction. Even if you just short out the section of a 3 prong fuse for only NPP- trips a CEL.
In C7 if you pulled fuse for V8 to V4 valves, it tripped a CEL. For NPP valves it did not. Why Mild to Wild worked. It was just a remote relay that “pulled the fuse on command.” Folks who used Mild to Wild in C7 tested and even in Track where NPP was open MOST OF THE TIME FROM ~1700 rpm and higher, had a drone on the highway if you pulled the fuse. Some folks were more sensitive and others didn’t care.
On my C6 NPP installed a simpler toggle switch to “pull the fuse” on command. Cruising on an Interstate the drone was bad and I had to flip the switch to let it “close the NPP valves.” Most other times it stayed “pulled”
So far no one has “proved” what it will or won’t do to “pull the fuse” say when set to Track, using the expensive devices plugged into the valve actuating plug that trick the computer to avoid a CEL. So the question remains; in Track will it make a difference? If so how much?
Last edited by JerryU; Oct 24, 2022 at 07:30 AM.
Race Director
Joined: Nov 2003
Posts: 16,069
Likes: 4,152
From: Bergen county NJ
C8 owners primed to order a z06 for its flat plane crank dohc and revised center exhaust that sends engine sound back into cabin on demand.
c8 stungray npp has been a little light on sound in cabin for many long time corvette owners.
The borla oem approved exhaust at 5 grand seems to resolve the quiet cabin issue according to owners but five grand is a bit steep.
c8 stungray npp has been a little light on sound in cabin for many long time corvette owners.
The borla oem approved exhaust at 5 grand seems to resolve the quiet cabin issue according to owners but five grand is a bit steep.
POSSE SENIOR RIDER
Joined: May 2003
Posts: 4,195
Likes: 698
From: Suffield, CT
I have M2W on my C6 and it works great. No need for the C8. I also understand that it does not work on the C8, so save your $$.
What I did was to make 'My Mode' change to loud exhaust and I kept all the other settings at 'Tour' level.
Works the same as M2W and works for me. I use the Z button for more aggressive settings.
What I did was to make 'My Mode' change to loud exhaust and I kept all the other settings at 'Tour' level.
Works the same as M2W and works for me. I use the Z button for more aggressive settings.
Thread Starter
Pro
Joined: Mar 2021
Posts: 627
Likes: 417
From: Virginia, Lynchburg-adjacent
Last edited by 22c8z51; Oct 25, 2022 at 03:13 AM.
