You are browsing camaro5 
 |
|
01-09-2017, 11:01 PM
|
#1 |
     Drives: 2014 Camaro SS 1Le Join Date: Feb 2016
Location: IL
Posts: 1,706
|
NPP Muffler Mod
Did this a couple of weeks back. Love the sound. Definitely louder from stock, and snap crackles and pops a lot more. Getting headers put in this Saturday, amd possibly a cam next week. Til then.. Enjoy, and heres the inside pics of the muffler....
https://youtu.be/JcFhFAtQPZc    
|
|
|
|
01-09-2017, 11:51 PM
|
#2 |
Drives: 2015 2ss Join Date: Jun 2009
Location: .
Posts: 645
|
I've seen a few of the vette guys do this, sounds great w/headers. where in IL are you? who did your fabrication?
i'd love to hear it in person after you get headers |
|
|
|
|
01-10-2017, 08:38 AM
|
#3 |
|
Drives: 2014 Camaro SS 1Le Join Date: Feb 2016
Location: IL
Posts: 1,706
|
Im in West Dundee. I was going to do this for my c6z, but I got some Corsas for 400, which was pretty much the same as if youre doing the muffler mod for the Z. I only paid $150 to get this done.
After hours fabrication in Aurora did the work. |
|
|
|
|
01-14-2017, 08:25 PM
|
#4 | |
|
Drives: 2014 Camaro SS 1Le Join Date: Feb 2016
Location: IL
Posts: 1,706
|
Quote:
https://youtu.be/twIL1kqdtYA |
|
|
|
|
|
01-15-2017, 12:01 AM
|
#5 | |
|
Drives: 2015 2ss Join Date: Jun 2009
Location: .
Posts: 645
|
Quote:
 Looks like that perforated pipe that is cut-out is replaced by a solid one? Last edited by 608RS; 01-15-2017 at 12:39 AM. |
|
|
|
|
|
01-15-2017, 12:55 AM
|
#6 |
|
Drives: 2014 Camaro SS 1Le Join Date: Feb 2016
Location: IL
Posts: 1,706
|
Yes, cut and replace. Ill be un bartlett area tomorrow.. lunch time.
|
|
|
|
|
01-22-2017, 10:05 PM
|
#7 |
    
Drives: ‘13 1LE Join Date: Jul 2013
Location: Earth
Posts: 3,904
|
Question:
How does this " NPP muffler mod" compare to running "NPP full flaps open" sound wise? |
|
|
|
|
01-22-2017, 10:49 PM
|
#8 | |
|
Drives: 2014 Camaro SS 1Le Join Date: Feb 2016
Location: IL
Posts: 1,706
|
Quote:
|
|
|
|
|
|
01-22-2017, 11:23 PM
|
#9 |
|
Drives: 2015 2ss Join Date: Jun 2009
Location: .
Posts: 645
|
^sent ya a PM Rupert
|
|
|
|
|
01-25-2017, 10:40 PM
|
#10 |
|
Drives: 2014 Camaro SS 1Le Join Date: Feb 2016
Location: IL
Posts: 1,706
|
|
|
|
|
|
01-26-2017, 03:59 AM
|
#11 | |
 
Drives: 15 Blue Velvet Metallic 2SS/1LE Join Date: Jul 2016
Location: Butler, NJ
Posts: 111
|
Quote:
__________________
 |
|
|
|
|
|
01-28-2017, 06:12 PM
|
#12 |
Drives: 2014 2SS/RS Join Date: Dec 2014
Location: Raleigh, NC
Posts: 1,053
|
When the dual-mode flap/valve is in the fully open position isn't that center pipe already straight through the muffler from one end to the other without interference?
How does removing the straight through section that has the holes in it make much difference in the sound level when the valve is open? Not understanding how this would alter the sound much? Does it instead send some sound out the other pipe tip on the right side (top of photo). When the flap/valve is SHUT I can see how this mod would be louder. But when valve is open does it really make much difference? OP BEFORE  OP AFTER  Ron
__________________
2014 2SS/RS, Z28 CAI and High Wing Spoiler, ZL1 5.1:1 Ratio Short-Throw Shifter, ZL1 Pedals, ZL1 splash guards, NPP Dual-mode quad tip exhaust, Z28 strut tower brace, Camaro LED Cup-holders with footwell Lighting option, Leather visors, and Leather E-brake boot. Chevy dealer sponsored 67 retro SS nose stripe package.
 Last edited by ron123; 01-28-2017 at 06:24 PM. |
|
|
|
|
01-29-2017, 02:16 AM
|
#13 |
|
Drives: 2014 Camaro SS 1Le Join Date: Feb 2016
Location: IL
Posts: 1,706
|
Yes. Having the valve open will jave a straight through sound... i keep it open. With the perforated pipe sealed, itll be more of a straight pipe with the option to quiet it down.
|
|
|
|
|
01-29-2017, 02:37 AM
|
#14 |
|
Drives: 2014 Camaro SS 1Le Join Date: Feb 2016
Location: IL
Posts: 1,706
|
|
|
|
|
|
|
|
|
 |
|
|
