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

Toronto · 08-19-2023, 01:34 PM

hello all,

my LS3 camaro is completely straightpiped. No cats. No res. No mufflers.

WAAAAAY too loud to DD. I have bbk longtubes and i want the cold starts a little quieter but i still want the chop from my cam to be loud.

Im not paying 2, 3, 4K for a whole system. Waste of money imo.

Thinking maybe i throw on a set of resonators. Will that make a big enough difference? Will they help remove some rasp? Leaning towards SLP loudmouths or Aero TR series.

let me know!

KillboyPowerhead · 08-19-2023, 01:51 PM

Resonators are more for reducing/eliminating higher frequencies (rasp) and don't do much to reduce volume. A big (oval) muffler on either side is probably what you need. Smaller (cylindrical) mufflers may not be enough to make a big enough difference.

You could also try replacing the X-pipe (or H-pipe) with a muffler/X-pipe combo (for example, part number 11386 by Magnaflow, https://www.magnaflow.com/products/1...-muffler-11386), so you'd have just one oval muffler, although I did this on my V6 which also had cats (no other mufflers/resonators) and it was decently loud so in your case it may still be louder than you want.

1JEWLDSSRS · 08-19-2023, 04:49 PM

Quote:

Originally Posted by KillboyPowerhead

Resonators are more for reducing/eliminating higher frequencies (rasp) and don't do much to reduce volume. A big (oval) muffler on either side is probably what you need. Smaller (cylindrical) mufflers may not be enough to make a big enough difference.

You could also try replacing the X-pipe (or H-pipe) with a muffler/X-pipe combo (for example, part number 11386 by Magnaflow, https://www.magnaflow.com/products/1...-muffler-11386), so you'd have just one oval muffler, although I did this on my V6 which also had cats (no other mufflers/resonators) and it was decently loud so in your case it may still be louder than you want.

^^^ This. I did the magnaflow mid muffler back when mine was straight piped and no cats. Toned it down pretty nicely and could still hear the cam very well. Had headers too.. Then after a while I opted for a good 3 inch catback system for 1400 bucks. Done deal..

ajg85 · 08-19-2023, 06:13 PM

Vouch MagnaFlow. I had stainless steel cat-back x-pipe with resonator and mufflers for about $1500 once upon a time. While it was still "loud enough" to turn heads and get shout outs it was not race car / track day / need a SHOEI to drive to the store loud ... can't beat the flow of a 4 inch straight pipe though so you could also get some ear plugs for $1, just saying.

rdavis · 09-02-2023, 01:00 PM

Find a pair of factory NPP mufflers. You will love them. Closed - nice exhaust sound with absolutely no drone. I can run down the highway at 80mph with my 3.91s & i hear just enough to know the engine is running. Open- essentially strait through exhaust. I have less than $650 in my setup including the 1LE diffuser.

CPCNY · 09-02-2023, 04:09 PM

If I could do it over I would get the Z28 system. They also offer the adapters for hook up to an SS. I don't know if they are still available.

Z/28 Cat-Back Exhaust System
POWER PERFORMER
Cat-back exhaust kits are a great way to increase power and performance with a simple bolt-on installation. This kit comes complete with pipes, mufflers, hangers, and exhaust tips assembled as a single unit. It features 2.75" pipes, with 26% less back pressure than a stock LS3 system.

PART NO. 22906768 (NOT SHOWN)

https://www.chevrolet.com/performanc...camaro/exhaust

tartagliazl1 · 09-02-2023, 04:53 PM

Quote:

Originally Posted by CPCNY

If I could do it over I would get the Z28 system. They also offer the adapters for hook up to an SS. I don't know if they are still available.

Z/28 Cat-Back Exhaust System
POWER PERFORMER
Cat-back exhaust kits are a great way to increase power and performance with a simple bolt-on installation. This kit comes complete with pipes, mufflers, hangers, and exhaust tips assembled as a single unit. It features 2.75" pipes, with 26% less back pressure than a stock LS3 system.

PART NO. 22906768 (NOT SHOWN)

https://www.chevrolet.com/performanc...camaro/exhaust

the z/28 cat-back system is no longer available. It's been discontinued. I've been looking for one for a while now. I may trade my NPP exhaust for my buddies corsa extreme. He said it too obnoxious.

Leadsled · 09-15-2023, 09:23 AM

I have kooks headers, Gutted cats, with Magna Flow center Muffler and Solo Performance J pipes axle back. Spend less than a grand for everything

Sales@Phastek · 09-15-2023, 04:17 PM

This Borla System will quite it down and still have very nice aggressive tone.

ss camaro-monte · 09-16-2023, 03:02 PM

I personally like solo but I am cammed now but with full length TSP 1 7/8 with straight piped solo catback it is really only loud at start up and when you floor it with a stock cam. Cats make a big difference in sound, even those solo high flow cats were not that loud but once I went full headers and straight pipes it was much louder even without the cam.

08-19-2023, 01:34 PM	#1
Toronto Drives: 2010 Camaro 1SS Join Date: Aug 2022 Location: Toronto, Ontario, Canada Posts: 45	Exhaust suggestions hello all, my LS3 camaro is completely straightpiped. No cats. No res. No mufflers. WAAAAAY too loud to DD. I have bbk longtubes and i want the cold starts a little quieter but i still want the chop from my cam to be loud. Im not paying 2, 3, 4K for a whole system. Waste of money imo. Thinking maybe i throw on a set of resonators. Will that make a big enough difference? Will they help remove some rasp? Leaning towards SLP loudmouths or Aero TR series. let me know!

08-19-2023, 01:51 PM	#2
KillboyPowerhead Drives: 2015 Z/22 Join Date: Aug 2015 Location: Ontario, Canada Posts: 931	Resonators are more for reducing/eliminating higher frequencies (rasp) and don't do much to reduce volume. A big (oval) muffler on either side is probably what you need. Smaller (cylindrical) mufflers may not be enough to make a big enough difference. You could also try replacing the X-pipe (or H-pipe) with a muffler/X-pipe combo (for example, part number 11386 by Magnaflow, https://www.magnaflow.com/products/1...-muffler-11386), so you'd have just one oval muffler, although I did this on my V6 which also had cats (no other mufflers/resonators) and it was decently loud so in your case it may still be louder than you want. __________________ Overkill/Self Tuned; Mace Camshafts; K&N Typhoon Cold Air Intake; Ported 80mm Throttle Body/Intake Manifolds/Manifold Spacer; Solo Performance High-Flow Cats, Cat-back Exhaust; Vitesse Motorsports Throttle Controller; Elite Engineering E2 Catch Can; BC Racing BR Coilovers; JPSS Delrin Radius Rod Bushing Inserts, Sway Bars; Pegasus Aluminum Rear Cradle Bushings, Camber/Caster Plates; Z/28 Toe Links, Trailing Arms, Upper Control Arm Bushings, Rear Shock Mounts

08-19-2023, 06:13 PM	#4
ajg85 Drives: 2023 Camaro SS Join Date: Aug 2023 Location: Arizona Posts: 25	Vouch MagnaFlow. I had stainless steel cat-back x-pipe with resonator and mufflers for about $1500 once upon a time. While it was still "loud enough" to turn heads and get shout outs it was not race car / track day / need a SHOEI to drive to the store loud ... can't beat the flow of a 4 inch straight pipe though so you could also get some ear plugs for $1, just saying. __________________ '23 Blue Camaro SS: "Pegasus" ----- gone, but not forgotten ----- '11 Gray Camaro LS: "Copmaro" '02 Red Camaro Z28: "Chimero" '01 Gold Camaro: "Goldie" '98 Black Firebird: "Blackhawk" Yes, I name cars, but they don't seem to mind.

09-02-2023, 01:00 PM	#5
rdavis Drives: 2012 SS Join Date: Feb 2016 Location: Lubbock Texas Posts: 121	Find a pair of factory NPP mufflers. You will love them. Closed - nice exhaust sound with absolutely no drone. I can run down the highway at 80mph with my 3.91s & i hear just enough to know the engine is running. Open- essentially strait through exhaust. I have less than $650 in my setup including the 1LE diffuser. __________________ 2012 2SS/RS 6speed, Howards asa cam on 113lsa Stainless works LT's, NPP exhaust, Z28 Cai, 3.91 gears. Tuned by Blue Thunder 2 racing Lubbock Texas.

09-15-2023, 09:23 AM	#8
Leadsled Drives: 2010 Camaro SS 6MT Join Date: Sep 2021 Location: Columbia Posts: 215 View My Garage	I have kooks headers, Gutted cats, with Magna Flow center Muffler and Solo Performance J pipes axle back. Spend less than a grand for everything __________________ TSP 229/244 .629"/615" CAM w/ a bunch of goodies 465whp/443tq tuned by MayhemMotorsports-NC

09-02-2023, 04:09 PM	#6
CPCNY Drives: 2010 2SS/RS, VR ext/Blk Int Join Date: Jul 2012 Location: Baldwinsville, NY Posts: 330	If I could do it over I would get the Z28 system. They also offer the adapters for hook up to an SS. I don't know if they are still available. Z/28 Cat-Back Exhaust System POWER PERFORMER Cat-back exhaust kits are a great way to increase power and performance with a simple bolt-on installation. This kit comes complete with pipes, mufflers, hangers, and exhaust tips assembled as a single unit. It features 2.75" pipes, with 26% less back pressure than a stock LS3 system. PART NO. 22906768 (NOT SHOWN) https://www.chevrolet.com/performanc...camaro/exhaust

09-15-2023, 04:17 PM	#9
Sales@Phastek Drives: 2016 1SS Join Date: Apr 2012 Location: Houston, TX Posts: 3,817	This Borla System will quite it down and still have very nice aggressive tone. __________________

09-16-2023, 03:02 PM	#10
ss camaro-monte Drives: 2015 camaro 2ss, 87 monte ss Join Date: Jun 2016 Location: Houston Posts: 242	I personally like solo but I am cammed now but with full length TSP 1 7/8 with straight piped solo catback it is really only loud at start up and when you floor it with a stock cam. Cats make a big difference in sound, even those solo high flow cats were not that loud but once I went full headers and straight pipes it was much louder even without the cam.