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Thread: GM NPP dual-mode exhaust valve tunability for Corvettes and Camaros

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    GM NPP dual-mode exhaust valve tunability for Corvettes and Camaros

    Corvette and Camaro owners would LOVE to customize exactly when the NPP dual-mode exhaust valves open and close. I'd pay $200 just to add that ability!

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    There already is the wireless fuse for that.
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    Senior Tuner DSteck's Avatar
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    Quote Originally Posted by Tooner View Post
    Corvette and Camaro owners would LOVE to customize exactly when the NPP dual-mode exhaust valves open and close. I'd pay $200 just to add that ability!
    It's a BCM function, not ECM.

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    Quote Originally Posted by Kyne View Post
    There already is the wireless fuse for that.
    Thanks but I'm getting greedy and want more control than to just hold the valves open. I'd like fully automated/adjustable control based on throttle, rpm, etc. For instance, the stock C6 Vette is held closed at idle but the Camaro is open. So I'd like to tweak it.

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    Quote Originally Posted by DSteck View Post
    It's a BCM function, not ECM.
    I've heard that. So I guess what I'm asking for is the ability to tune BCM functions.

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    Senior Tuner DSteck's Avatar
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    Quote Originally Posted by Tooner View Post
    I've heard that. So I guess what I'm asking for is the ability to tune BCM functions.
    Good luck. HPT has already said they aren't interested in pursuing BCM edits.

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    Tuning Addict 5FDP's Avatar
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    I mean you could like hire someone, perhaps a midget to ride along with you at all times and then just have them pull the fuse in and out at given commands that you either say or write down.







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    Quote Originally Posted by 5FDP View Post
    I mean you could like hire someone, perhaps a midget to ride along with you at all times and then just have them pull the fuse in and out at given commands that you either say or write down. Late night thinking....
    I'd go with writing down -- less chance for confusion.
    Last edited by Tooner; 11-01-2013 at 08:26 AM.

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    Quote Originally Posted by DSteck View Post
    Good luck. HPT has already said they aren't interested in pursuing BCM edits.
    I wonder why not. I think they could charge extra for "add-ons" like BCM control. Unless its not possible (?) someone is going to come out with it, and they'll have a competetive edge in the tuning software market. I love HP Tuners but I hope that's what happens.

  10. #10
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    Quote Originally Posted by Tooner View Post
    I've heard that. So I guess what I'm asking for is the ability to tune BCM functions.
    Saw this post from many years ago, taking a stab in the dark here but I have a C7 GS that I'd like to tune the BCM to modify the NPP tip-in RPMs, etc. Mild 2 Wild is an option but IMO, a kludge if we can indeed use HP Tuners for this.