pull Fuse F51 for exhaust fully open?

302crossram · 05-22-2023, 04:16 PM

manual states:

F51 rear exhaust valve PTSQ

I would like to sample wide open one time under a bridge here

SSDan · 05-22-2023, 06:35 PM

You can pull the fuse if you want. You can also get what you want by making sure the exhaust is set to Track mode and then when you go WOT the flaps will be fully open. With the fuse pulled the flaps stay open all the time. In Track mode for the exhaust the same flaps are wide open as well anytime you are getting on it. Then they will close as you go back to low throttle. All of this said assumes you have dual mode exhaust.

I love NPP ( dual mode exhaust). I have it locked in track mode. It’s loud when I want it and quiet when I’m cruising. I triied the fuse pull and put it back because I wanted it quiet when just cruising along.

SSShark · 05-22-2023, 07:01 PM

Just pulled the fuse and drove it in sport mode. Sounds aggressive at all speeds. Got it up to 50-55mph and cruised for a few blocks. Very impressive.

302crossram · 05-22-2023, 07:11 PM

I have NPP, at first I ordered it just for the quad tips.
Initial thoughts were its too boy racer but I was wrong.
Its a great set up for being an OE product.
Got try at least once all open all the time mode

I like the sport exhaust setting the most

SSShark · 05-22-2023, 07:15 PM

I also like sport mode the best, but I think I'll keep the fuse out for a little longer. It's definitely fun times.

Green82 · 05-22-2023, 09:54 PM

where is the fuse located? like to try that with mine

adamjwilson · 05-23-2023, 06:41 AM

Quote:

Originally Posted by Green82

where is the fuse located? like to try that with mine

Under the hood- fuse box on passenger side- Fuse #51 clearly marked on fuse box cover

Spaceme1117 · 05-23-2023, 06:44 AM

Add some long tube headers to the the factory NPP and pull the fuse. Same factory sound just a lot more of it.

SSShark · 05-23-2023, 07:17 AM

Quote:

Originally Posted by Spaceme1117

Add some long tube headers to the the factory NPP and pull the fuse. Same factory sound just a lot more of it.

jamala00 · 05-23-2023, 07:20 AM

Does pulling the fuse do something different then just setting your exhaust to Track in the infotainment?

bdavies11 · 05-23-2023, 07:29 AM

Quote:

Originally Posted by jamala00

Does pulling the fuse do something different then just setting your exhaust to Track in the infotainment?

Read what SSDan stated. In track mode, (with the fuse in place) the valves will still close when just cruising. Pulling the fuse means the valves will never close no matter what driving mode you are in. WOT will sound no different with the fuse in or out but after pulling the fuse, you will be able to hear more of the exhaust even at light throttle because the valves stay open all the time.

jamala00 · 05-23-2023, 09:48 AM

Quote:

Originally Posted by bdavies11

Read what SSDan stated. In track mode, (with the fuse in place) the valves will still close when just cruising. Pulling the fuse means the valves will never close no matter what driving mode you are in. WOT will sound no different with the fuse in or out but after pulling the fuse, you will be able to hear more of the exhaust even at light throttle because the valves stay open all the time.

I should have read all the posts first.

Thx!

JT6Speed · 05-23-2023, 12:41 PM

Quote:

Originally Posted by bdavies11

Read what SSDan stated. In track mode, (with the fuse in place) the valves will still close when just cruising. Pulling the fuse means the valves will never close no matter what driving mode you are in. WOT will sound no different with the fuse in or out but after pulling the fuse, you will be able to hear more of the exhaust even at light throttle because the valves stay open all the time.

This begs the question though, do you, or anyone else for that matter know the parameters of when the valves open in track? Like at what rpm and/or throttle input do they open? Trying to decide if it's worth it since WOT sounds the same anyway.

SSDan · 05-23-2023, 03:29 PM

Quote:

Originally Posted by JT6Speed

This begs the question though, do you, or anyone else for that matter know the parameters of when the valves open in track? Like at what rpm and/or throttle input do they open? Trying to decide if it's worth it since WOT sounds the same anyway.

I do not know the exact parameters. For me as I row through the gears and shift at 3K or higher the exhaust sounds like the flaps are open. It’s not until I shift into 5th or 6th and start cruising that it quiets down.

05-22-2023, 04:16 PM	#1
302crossram Drives: 2023 Sharkskin 2SS Join Date: Oct 2022 Location: NWFL Posts: 758	pull Fuse F51 for exhaust fully open? manual states: F51 rear exhaust valve PTSQ I would like to sample wide open one time under a bridge here

05-22-2023, 06:35 PM	#2
SSDan Drives: 2016 1SS 6MT NPP Join Date: Feb 2010 Location: Lake Murray, SC Posts: 2,245 View My Garage	You can pull the fuse if you want. You can also get what you want by making sure the exhaust is set to Track mode and then when you go WOT the flaps will be fully open. With the fuse pulled the flaps stay open all the time. In Track mode for the exhaust the same flaps are wide open as well anytime you are getting on it. Then they will close as you go back to low throttle. All of this said assumes you have dual mode exhaust. I love NPP ( dual mode exhaust). I have it locked in track mode. It’s loud when I want it and quiet when I’m cruising. I triied the fuse pull and put it back because I wanted it quiet when just cruising along. __________________ 2016 Camaro 1SS Hyper Blue 6MT NPP 2010 Camaro 2SS Cam/Headers/CAI/3.91 gears 476 rwhp/440 rwtq (sold)

05-22-2023, 07:01 PM	#3
SSShark Drives: '23 1SS Sharkskin A10 Join Date: Sep 2018 Location: South Florida Posts: 1,069	Just pulled the fuse and drove it in sport mode. Sounds aggressive at all speeds. Got it up to 50-55mph and cruised for a few blocks. Very impressive.

05-22-2023, 07:11 PM	#4
302crossram Drives: 2023 Sharkskin 2SS Join Date: Oct 2022 Location: NWFL Posts: 758	I have NPP, at first I ordered it just for the quad tips. Initial thoughts were its too boy racer but I was wrong. Its a great set up for being an OE product. Got try at least once all open all the time mode I like the sport exhaust setting the most

05-22-2023, 07:15 PM	#5
SSShark Drives: '23 1SS Sharkskin A10 Join Date: Sep 2018 Location: South Florida Posts: 1,069	I also like sport mode the best, but I think I'll keep the fuse out for a little longer. It's definitely fun times.

05-22-2023, 09:54 PM	#6
Green82 Drives: 2022 camaro lt1 Join Date: Apr 2023 Location: Oklahoma Posts: 70	where is the fuse located? like to try that with mine

05-23-2023, 06:44 AM	#8
Spaceme1117 Drives: 2017 Camaro SS, 2011 Corvette GS Join Date: Feb 2019 Location: Erlanger, Kentucky 41018 Posts: 815	Add some long tube headers to the the factory NPP and pull the fuse. Same factory sound just a lot more of it.

05-23-2023, 07:20 AM	#10
jamala00 Drives: 2016 Camaro 2SS Hyper Blue Metallic Join Date: May 2020 Location: WI Posts: 2,451	Does pulling the fuse do something different then just setting your exhaust to Track in the infotainment?

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