exhaust not as loud as before? - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

ducq · 10-14-2011, 08:49 PM

I've noticed my exhaust has lost a little raspiness and loudness. It sounds a bit more muffled than usual. Could this be due to the cats clogging? An air filter that needs replacing or something to do with the spark plugs/wires?

I have stock plugs, granatelli hi temp wires. Kooks LT with kooks hi flow cats. X pipe with magnaflow axle back deletes. CAI cai with maybe 16k miles on the filter.

Wouldn't I get a CeL if a cat were to be clogged? Or misfiring if a plug is messed up? I havnt really began any trouble shooting. Just kinda speculating right now. Any ideas?

Parag · 10-14-2011, 09:01 PM

probably the cats are starting to break down and clog, high flow cats have never been known to last long, cant think of a reason anything other than exhaust would cause anything you listed

2010 SSRS · 10-14-2011, 09:06 PM

how long do high flow cats last, I thought they were good for a long time.

Parag · 10-14-2011, 10:41 PM

seems like ted said that after about a year or two they wont even pass emissions

2010 SSRS · 10-14-2011, 10:49 PM

Quote:

Originally Posted by Parag

seems like ted said that after about a year or two they wont even pass emissions

Ted who

The Stig · 10-14-2011, 11:27 PM

Ted Jannetty?

Parag · 10-14-2011, 11:57 PM

Quote:

Originally Posted by stieger

Ted Jannetty?

yeah, to me he is the man to ask on here

2010 SSRS · 10-15-2011, 12:00 AM

Quote:

Originally Posted by Parag

yeah, to me he is the man to ask on here

he did not tell me that the cats did not last long when I went to his shop and had the Dynatech High Flows installed on mine, that is why I asked Ted who.

axis · 10-15-2011, 08:18 AM

You're getting mo deafer.

JANNETTYRACING · 10-15-2011, 08:45 AM

Cats are Fine on N/A cars but won't last with superchargers.

Passing emissions is a whole different subject than cats surviving.

Proper Tuning is critical to CAT Life, I find many Tuners Turn off Cat Overtemp Protection fueling, and this will melt the cats.

Ted.

ducq · 10-16-2011, 06:15 PM

Well I guess I'll be ordering another set of kooks high flow cats.. What can I do with the old ones.

Miraclewhip · 10-16-2011, 06:20 PM

Quote:

Originally Posted by axis

You're getting mo deafer.

this^

10-14-2011, 08:49 PM	#1
ducq Drives: 2010 Camaro 1SS/RS LS3 blck w/ IOM Join Date: May 2010 Location: Bay Area, CA Posts: 580	exhaust not as loud as before? I've noticed my exhaust has lost a little raspiness and loudness. It sounds a bit more muffled than usual. Could this be due to the cats clogging? An air filter that needs replacing or something to do with the spark plugs/wires? I have stock plugs, granatelli hi temp wires. Kooks LT with kooks hi flow cats. X pipe with magnaflow axle back deletes. CAI cai with maybe 16k miles on the filter. Wouldn't I get a CeL if a cat were to be clogged? Or misfiring if a plug is messed up? I havnt really began any trouble shooting. Just kinda speculating right now. Any ideas? __________________ TSP 229/236 cam .Magnaflow Comp axleback .KOOKS LT w/ high flow cats .magnapack bullets. C.A.I. Vmax ported TB. Dyno tuned 452hp / 422tq.

10-14-2011, 09:06 PM	#3
2010 SSRS Drives: 3 V8 Camaros Join Date: May 2009 Location: The Ocean State Posts: 111,186 View My Garage	how long do high flow cats last, I thought they were good for a long time. __________________ Jannetty Racing JRE Street Package

10-14-2011, 11:27 PM	#6
The Stig knows 2 facts about ducks Drives: ...and they're both wrong Join Date: Aug 2009 Location: The HMS Invincible Posts: 25,072 View My Garage	Ted Jannetty? __________________

10-15-2011, 08:18 AM	#9
axis Search Ninja Drives: 2010 Black 2SS/RS A6 Join Date: Oct 2009 Location: Central Ark Posts: 7,183	You're getting mo deafer. __________________ 2010 Black 2SS/RS A6 Halltech CF 102 fed GPI modded intake manifold Bo (knows) White ported TB Kooks LT's/ Dynomax VT Pfadted (springs/sways) Dyno tuned by Rhino and GPI I once parallel parked a train.

10-15-2011, 08:45 AM	#10
JANNETTYRACING Drives: BLUE CAMARO ZL1 1LE M6 Join Date: Jun 2009 Location: ON THE DYNO WATERBURY CT. Posts: 15,400	Cats are Fine on N/A cars but won't last with superchargers. Passing emissions is a whole different subject than cats surviving. Proper Tuning is critical to CAT Life, I find many Tuners Turn off Cat Overtemp Protection fueling, and this will melt the cats. Ted. __________________ www.jannettyracing.com Celebrating 39 years Performance parts, Installation, Fabrication, Dyno tuning, Remote custom tuning, and alignments. 203-753-7223 Waterbury CT. 06705 email tedj@jannettyracing.com

10-14-2011, 09:01 PM	#2
Parag Drives: 2010 camaro 2SS LS3 Join Date: Aug 2011 Location: Denver Posts: 1,334	probably the cats are starting to break down and clog, high flow cats have never been known to last long, cant think of a reason anything other than exhaust would cause anything you listed

10-14-2011, 10:41 PM	#4
Parag Drives: 2010 camaro 2SS LS3 Join Date: Aug 2011 Location: Denver Posts: 1,334	seems like ted said that after about a year or two they wont even pass emissions

10-16-2011, 06:15 PM	#11
ducq Drives: 2010 Camaro 1SS/RS LS3 blck w/ IOM Join Date: May 2010 Location: Bay Area, CA Posts: 580	Well I guess I'll be ordering another set of kooks high flow cats.. What can I do with the old ones. __________________ TSP 229/236 cam .Magnaflow Comp axleback .KOOKS LT w/ high flow cats .magnapack bullets. C.A.I. Vmax ported TB. Dyno tuned 452hp / 422tq.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Official 1/4 Mile (V8) 2010+ Camaro Fast List	Merc	Dragstrip and Launch Techniques Discussion	3656	11-01-2025 02:41 PM
Back pressure and the camaro...	SS>GT	Camaro V8 LS3 / L99 Engine, Exhaust, and Bolt-Ons	80	12-03-2012 04:39 PM
WANTED: LOUD V6 EXHAUST CAT BACK	Bigkid715	V6 - Engine, Exhaust, Bolt-Ons, Tuning Equipment	8	11-04-2011 10:55 PM
MAGNAFLOW Cat-Back / Axle-Back Exhaust Systems \| FREE Shipping	Apex Paul	V8 Bolt-Ons & Tunes	134	01-24-2011 01:56 AM
SLP Loud Mouth II exhaust for sale	FrankT	V8 - Engine, Exhaust, Bolt-Ons, Tuning Equipment	6	05-11-2010 02:15 PM