M2W switch question, non NPP car?
Thread Starter
Burning Brakes
Joined: May 2022
Posts: 750
Likes: 137
From: Texas
2025 C7 of the Year Finalist - Modified
M2W switch question, non NPP car?
I’m thinking about removing my axle back on my ‘17 stingray and buying some mufflers with NPP off a grand sport. I’ve seen people use the mild 2 wild switches or valve controllers. Will the mild 2 wild switch work on my non NPP car or do I need to buy the valve controller? Or are they all the same? Thanks
Also are the Stingray/Grand Sport mufflers any different from the Z06/ZR1 mufflers? Thanks.
Also are the Stingray/Grand Sport mufflers any different from the Z06/ZR1 mufflers? Thanks.
Race Director
Joined: Apr 2000
Posts: 15,344
Likes: 4,009
From: Texas
You’re missing the wiring and software. M2W won’t do anything on your car.
im not aware of anyone retrofitting the factory system on a c7. It’s different than a C6. The aftermarket used to sell a controller for about $400 and a couple guys have designed their own
Stingray, GS, and Z06 NPP mufflers are the same. ZR1 mufflers are internally different but interchangeable.
im not aware of anyone retrofitting the factory system on a c7. It’s different than a C6. The aftermarket used to sell a controller for about $400 and a couple guys have designed their own
Stingray, GS, and Z06 NPP mufflers are the same. ZR1 mufflers are internally different but interchangeable.
Le Mans Master
Joined: Oct 2014
Posts: 8,673
Likes: 2,728
From: Atlanta GA
You can retrofit a non NPP car but it's expensive this controler will give you all the factory functions
Dave
https://www.topflightautomotive.com/...AaAgGbEALw_wcB
Dave
https://www.topflightautomotive.com/...AaAgGbEALw_wcB
Burning Brakes
Joined: Apr 2018
Posts: 833
Likes: 295
From: Loveland Ohio
the factory Z06 mufflers wont technically work on a GS or Stingray. The factory mufflers for the Stingray and GS also include the over the axle pipe which includes the AFM valves, the Z06 mufflers with the axle pipes dont have AFM valves
Race Director
Joined: Apr 2000
Posts: 15,344
Likes: 4,009
From: Texas
OP....if you buy mufflers without the AFM valves and you need them, install AFM sims so you don't get a check engine light or have it programmed out. The other option is to take the electronics off the existing setup, plug them into the factory harness, and tie them off to the side of the exhaust.
Le Mans Master
Joined: Oct 2014
Posts: 8,673
Likes: 2,728
From: Atlanta GA
You need the AFM valves that are before the muffler , if they don't have them you would have to buy AFM simulators that your AFM actuators bolt to and tie them up under the car somehow
If you have the 2 sets of valves then you would need this controller to have control like the factory
Akrapovic 14-17 Chevrolet Corvette Stingray (C7) Control
https://mammothracing.com/products/a...oaAvdZEALw_wcB
Kinda expensive but it's the only way to go unless you just running the NPP open at all times . I run mine open 90% of the time as they don't drone at all
Dave
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