Exhaust Suggestions - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

LW2013ss · 07-07-2023, 05:40 AM

I have a 2013 ss stock with the npp exhaust. I am looking to make it louder and sound better and was looking for suggestions on what I should do. I don't want to make it so loud it is obnoxious and I don't want it to sound bad. A couple things I have looked at are muffler delete, high flow cats, or catback system. I am looking to keep it around $1000, under would be better. I would like some suggestions and what you guys have done. Thanks

larry_g · 07-07-2023, 05:56 AM

Headers with hi flow cats and then stock back to the NPP was the best sound mine had. Once I went with the Whipple, I got rid of the cats and it got too loud and I ended up with a couple of different configurations that still never sounded as good.

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tartagliazl1 · 07-07-2023, 06:06 AM

just like larry said, just add headers to the NPP system. If you do a cat delete it will get much louder. Plus once you add a cam it will get louder again.

morepowerjoe · 07-07-2023, 09:26 AM

Quote:

Originally Posted by tartagliazl1

just like larry said, just add headers to the NPP system. If you do a cat delete it will get much louder. Plus once you add a cam it will get louder again.

I agree. With all the choices out there that are all overly priced in my opinion, if you do headers with the stock exhaust and high flow cats it really does sound good. I went with a complete TSP exhaust with headers, cats, x pipe, and there mufflers. Then I went and had the cats removed and out in a real x pipe and now it's way to loud for me anyways. But the complete system with a tune cost me around $2500 and that was with me installing it. That's the only thing is that if you go with long tubes you will then need a tune so just keep that in mind.

1JEWLDSSRS · 07-07-2023, 12:12 PM

Quote:

Originally Posted by larry_g

Headers with hi flow cats and then stock back to the NPP was the best sound mine had. Once I went with the Whipple, I got rid of the cats and it got too loud and I ended up with a couple of different configurations that still never sounded as good.

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Totally agree with Larry. LT's and hiflow cats with the NPP will almost double your sound output. And if you do a cam later down the road, it will get even louder again!! Good luck. And as joe said, you will need a tune with the LT's so you don't get a CEL, and get the proper performance the LT's have to offer.

pyroguy · 07-12-2023, 08:50 PM

+1 for NPP exhaust with long tube headers. One of the best sounding exhausts out there.

RupertPupkin · 07-12-2023, 08:59 PM

Muffler mod on the NPP. That's what I did. Never looked back.

SS_CTS-V · 07-13-2023, 03:53 PM

NOWEEDS, unless you don't have LT headers, then do that first. Then you can mod the NPP with a simple switch to manually hold the valves open, closed, or operate as stock with a simple push of the switch.

07-07-2023, 05:40 AM	#1
LW2013ss Drives: 2013 Camaro ss Join Date: Jul 2023 Location: Kentucky Posts: 1	Exhaust Suggestions I have a 2013 ss stock with the npp exhaust. I am looking to make it louder and sound better and was looking for suggestions on what I should do. I don't want to make it so loud it is obnoxious and I don't want it to sound bad. A couple things I have looked at are muffler delete, high flow cats, or catback system. I am looking to keep it around $1000, under would be better. I would like some suggestions and what you guys have done. Thanks

07-07-2023, 05:56 AM	#2
larry_g Drives: 2014 1SS/1LE Join Date: Nov 2015 Location: Louisville, KY Posts: 826	Headers with hi flow cats and then stock back to the NPP was the best sound mine had. Once I went with the Whipple, I got rid of the cats and it got too loud and I ended up with a couple of different configurations that still never sounded as good. Sent from my Pixel 5 using Tapatalk __________________ 830 WHP 700 WTQ, Whipple 2.9 @ 13lbs Boost, Flex Fuel Tune by Blevins Tuning, LSA SBE, 3.5 GripTec, ATI LS3 Damper, AFR 260cc Mongoose, ARP Studs, Yella Terra Ultralites, Johnson 2110R, BTR PDS Stage 3, Melling 10355, Improved Racing Baffle, ID1050X, DSX Triple Fuel Pump, RotoFab CAI, NW 103mm TB, Stainless Works 1-7/8" LTH to 3" Speed Eng w/ X-pipe to NPP, Powermaster 9509 XS, Detroit Speed Motor Mounts, MGW, Monster LT1-S, ZL1 Calipers, DBA Rotors & Pads, Bilstein B6 Struts & Shocks, BMR 1.25" Drop Springs & Adj Rear Bar, Pegasus Solid Bushings, Z/28 Wheels, other misc parts.

07-07-2023, 06:06 AM	#3
tartagliazl1 Drives: 2013 zl1 vert Join Date: Dec 2018 Location: Rochester, New york Posts: 965	just like larry said, just add headers to the NPP system. If you do a cat delete it will get much louder. Plus once you add a cam it will get louder again. __________________ 22% lower/ 2.5 upper/ 2” headers/ cat delete/ x-pipe/ 2 gallon x tank/ 100-3 pump/ fic 1300/ dsx aux kit/ 103mm throttle body/ RPM 5” intake/ meth kit/ prometh lid injection/FI interchiller/ 160* stat/ ngk-7/ msd wires/ elite catch can/ tsp cam/ Che trunnions/ ported supercharger/ 1/2” lid spacer/ brick mod/BMR toe and trailing arms/ 751hp 757 tq SAE @17.3lb on a loaded dyno.

07-12-2023, 08:50 PM	#6
pyroguy Started#gottalovethatblue Drives: ABM #831 Join Date: Apr 2013 Location: TN Posts: 6,934 View My Garage	+1 for NPP exhaust with long tube headers. One of the best sounding exhausts out there. __________________ '10 Camaro 2SS/RS \| Aqua Blue #831 of 3,903 \| Silver Stripes Check out my build thread

07-12-2023, 08:59 PM	#7
RupertPupkin Drives: 2014 Camaro SS 1Le Join Date: Feb 2016 Location: IL Posts: 1,629	Muffler mod on the NPP. That's what I did. Never looked back. __________________ 2014 SS 1LE Money Pit/ Forged 402 CAM 22X/24X, .619/.617, 113 LSA/ LS9 Heads FIC 1200cc/DSX Aux Pump//McLeod RXT Clutch 730whp: 630Trq

07-13-2023, 03:53 PM	#8
SS_CTS-V Drives: 2015 SS, 2006 CTS-V (wrecked...) Join Date: Jul 2017 Location: Tampa Posts: 151	NOWEEDS, unless you don't have LT headers, then do that first. Then you can mod the NPP with a simple switch to manually hold the valves open, closed, or operate as stock with a simple push of the switch.