DIY/How-to: How/What fuse to pull for NPP (Dual mode exhaust) - Page 5 - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

raw_shark · 03-31-2013, 06:58 PM

Just pulled the NPP fuse a couple days ago. Sounds AWESOME. Crappy vid:

Minge · 04-03-2013, 08:28 PM

This fuse pull will not make the car throw a code of any kind?

FINALLYSATISFIED · 04-04-2013, 08:16 AM

Quote:

Originally Posted by Chi-One

Just did this today.

Thanks to the OP!

No problem! Glad I could help out!

Quote:

Originally Posted by raw_shark

Just pulled the NPP fuse a couple days ago. Sounds AWESOME. Crappy vid:

Sounds amazing!

Quote:

Originally Posted by Minge

This fuse pull will not make the car throw a code of any kind?

Nope, your car will not throw any codes at all. I've done this mod on my 1LE that I had and I have it done on my ZL1.

jeffmem1 · 04-16-2013, 08:00 PM

I just did this absolutely love it. Stupid question here but with the fuse out the exhaust won't hurt my engine at all??

slick rick · 04-17-2013, 12:41 PM

Quote:

Originally Posted by jeffmem1

I just did this absolutely love it. Stupid question here but with the fuse out the exhaust won't hurt my engine at all??

Will not hurt

jeffmem1 · 04-18-2013, 05:43 PM

Ok thank you

Scott@Bjorn3D · 04-19-2013, 05:54 AM

What the fuse pull does is keep the flap open on the outer exhaust pipe. That tail pipe bypasses muffler insulation and is pretty much a straight pipe. Your exhaust will now take the path of lower resistance and you will notice your outside tips will be the only tips getting dirty from exhaust.

While you car is running put your hand to the out pipe. You will feel hot exhaust. The inner pipe you will fill nothing and maybe even a little suction pulling in a little air back the free flowing pipe.

*mlee* · 04-19-2013, 06:31 AM

Quote:

Originally Posted by raw_shark

Just pulled the NPP fuse a couple days ago. Sounds AWESOME. Crappy vid:

Nice video... but it would have sounded exactly the same w/ the fuse in. Flap is already open at idle or went reving it up like that.

SkunkJunk420 · 04-25-2013, 03:43 PM

Quote:

Originally Posted by mlee

Nice video... but it would have sounded exactly the same w/ the fuse in. Flap is already open at idle or went reving it up like that.

he's right... i had to go punch it down the street to tell a difference... but there is definitly a difference

thanx for the write up... it made things too easy

HighMtnSS · 04-28-2013, 07:42 PM

Thanks so much for this thread, OP!!!

Combover · 05-04-2013, 02:05 PM

Since the exhaust is now also coming out of the outer pipes, what's the chance this will eliminate or decrease the possibility of the muffler packing coming out of the inside pipes?

http://www.camaro5.com/forums/showthread.php?t=290596

Minge · 05-04-2013, 05:19 PM

Did not like the burble during deceleration with the fuse pulled so I put it back in. Easy mod but just was not for me. I think the flaps keep a little back pressure so the burble is not as noticeable. At least not for me it wasn't. Could just me who knows.

FINALLYSATISFIED · 05-04-2013, 09:11 PM

Quote:

Originally Posted by SkunkJunk420

he's right... i had to go punch it down the street to tell a difference... but there is definitly a difference

thanx for the write up... it made things too easy

Quote:

Originally Posted by HighMtnSS

Thanks so much for this thread, OP!!!

No, problem!

Quote:

Originally Posted by GAZL1

Since the exhaust is now also coming out of the outer pipes, what's the chance this will eliminate or decrease the possibility of the muffler packing coming out of the inside pipes?

http://www.camaro5.com/forums/showthread.php?t=290596

Good question? I know I haven't had any issues with the packing now that I've done the fuse pull. Then again, i'm not sure what has caused the packing in the first place.

markgws6 · 05-20-2013, 05:29 PM

Question 1. So basically this makes the NPP cars louder all the time vs. louder only when driving and you WOT the accelerator right? Question 2. So due to the freer flowing exhaust all of the time, has anyone done any dyno runs or 0-60 times or anything to compare the differences?

05-20-2013, 05:29 PM	#70
markgws6 Drives: 2019 Chevy Equinox Premier AWD Join Date: Mar 2011 Location: Silicon Valley, CA Posts: 1,344 View My Garage	Question 1. So basically this makes the NPP cars louder all the time vs. louder only when driving and you WOT the accelerator right? Question 2. So due to the freer flowing exhaust all of the time, has anyone done any dyno runs or 0-60 times or anything to compare the differences? __________________ 2013 AGM 1SS/1LE, NPP, Camera (1 of 43)

04-03-2013, 08:28 PM	#58
Minge Drives: 2013 2SS Join Date: Sep 2012 Location: Minneapolis Posts: 279	This fuse pull will not make the car throw a code of any kind?

04-16-2013, 08:00 PM	#60
jeffmem1 Drives: 2013 SS 2 Join Date: Apr 2013 Location: mo Posts: 13	I just did this absolutely love it. Stupid question here but with the fuse out the exhaust won't hurt my engine at all??

04-18-2013, 05:43 PM	#62
jeffmem1 Drives: 2013 SS 2 Join Date: Apr 2013 Location: mo Posts: 13	Ok thank you

04-19-2013, 05:54 AM	#63
Scott@Bjorn3D Drives: Kami, 2013 2SS LS3 Luvin Join Date: Oct 2008 Location: Eufaula, Alabama Posts: 6,427	What the fuse pull does is keep the flap open on the outer exhaust pipe. That tail pipe bypasses muffler insulation and is pretty much a straight pipe. Your exhaust will now take the path of lower resistance and you will notice your outside tips will be the only tips getting dirty from exhaust. While you car is running put your hand to the out pipe. You will feel hot exhaust. The inner pipe you will fill nothing and maybe even a little suction pulling in a little air back the free flowing pipe.

04-28-2013, 07:42 PM	#66
HighMtnSS Drives: '13 AGM 2SS/RS 1LE, 1 of 139 Join Date: Apr 2011 Location: Broomfield, Colorado Posts: 142	Thanks so much for this thread, OP!!!

05-04-2013, 02:05 PM	#67
Combover Drives: 2013 ZL1 Join Date: Nov 2012 Location: Georgia Posts: 493	Since the exhaust is now also coming out of the outer pipes, what's the chance this will eliminate or decrease the possibility of the muffler packing coming out of the inside pipes? http://www.camaro5.com/forums/showthread.php?t=290596

05-04-2013, 05:19 PM	#68
Minge Drives: 2013 2SS Join Date: Sep 2012 Location: Minneapolis Posts: 279	Did not like the burble during deceleration with the fuse pulled so I put it back in. Easy mod but just was not for me. I think the flaps keep a little back pressure so the burble is not as noticeable. At least not for me it wasn't. Could just me who knows.