Cats or No Cats - Page 3 - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

JICPerformance · 12-21-2009, 07:16 PM

cats. Unless you are making 600rwhp or more, they don't tend to hurt too much and the LS2 engines often lost horsepower if they ran with just cutouts and no cats (no restriction). I personally prefer the sound WITH cats on most catback systems.

toehead93 · 12-21-2009, 08:30 PM

Really, with 400-500rwhp how much power is really lost with high flow cats?

Windy City · 12-21-2009, 08:55 PM

I bought Andy's (ADM) "off road" replacement down tubes but haven't tried em out yet. I was mostly looking at the weight savings.

I thought this thread was about *****.....cats!

toehead93 · 12-21-2009, 09:11 PM

Oh, well I'd rather have a dog.

tjbusa · 12-21-2009, 09:24 PM

Junkie, I went with the SLP longtube package with hi flo cats, I may want to sell the car one day and I don't want emissions to be an issue.

1320junkie · 12-21-2009, 10:12 PM

Im running no cats...I was having this discussion with a member on the phone and just wanted to hear some open discussion...of course im over 600hp..lol

full of days · 12-22-2009, 05:40 PM

okay, here's a down and dirty vid I took tonight on my Droid. My apologies for the poor audio/vid quality...

Dynatech Supermaxx longtube headers with catted mid pipe
MBRP full race exhaust system
Airaid CAI
Hurst SS

1320junkie · 12-22-2009, 05:55 PM

Nice

full of days · 12-24-2009, 11:28 AM

Here's a dyno pull from yesterday's tune. I'm running the Dynatech supermaxx longtube headers with their "power cat" catted midpipes and MBRP cat back exhaust

ffwd to 1 minute for the dyno pull...

416HP 417TQ No more skip shift, no more popping on decel, throttle response down low is incredible. smooth linear power band

TC · 12-24-2009, 11:42 AM

I'm running Kook LT's with MBRP X- pipe and back. No cats. At points it is honestly a little to tinny sounding for me. Don't care for the drone either. I was thinking of getting some hi-flo cats, how much would they affect the way it sounds?

Q8Y · 12-24-2009, 12:21 PM

I have ARH LTs 1 7/8 no cats hooked up to the OEM muffler after taking to Nick from ARH this is what he recommended because we don't emission test.the sound is not too loud while cruising you can barely hear it with windows up and at WOT its perfect as volume goes.but I hate the tone itself I think its too metally and raspy especially while idling I was thinking of changing the mufflers with A/M axle back but afraid to be too loud.

12-21-2009, 07:16 PM	#29
JICPerformance Here to make you faster Drives: 2005 GTO supercharged 2009 GXP Join Date: Apr 2009 Location: Atlanta, GA Posts: 126	cats. Unless you are making 600rwhp or more, they don't tend to hurt too much and the LS2 engines often lost horsepower if they ran with just cutouts and no cats (no restriction). I personally prefer the sound WITH cats on most catback systems. Last edited by JICPerformance; 12-21-2009 at 08:46 PM.

12-21-2009, 08:30 PM	#30
toehead93 Drives: 2014 2SS/1LE Join Date: Feb 2007 Location: wpb fl Posts: 3,136 View My Garage	Really, with 400-500rwhp how much power is really lost with high flow cats? __________________ Used Racing Brake 2 Peice Rotors for sale: http://www.camaro5.com/forums/showthread.php?t=344754 Summit White 2014 2SS 1LE Recaros, NPP exhaust, Nav 2010 2SS A6 - sold.

12-21-2009, 08:55 PM	#31
Windy City Drives: Not enough room here! Join Date: Jul 2009 Location: Plainfield, IL Posts: 1,017	I bought Andy's (ADM) "off road" replacement down tubes but haven't tried em out yet. I was mostly looking at the weight savings. I thought this thread was about *****.....cats! __________________ BEWARE OF THE LPE BROTHERHOOD! Remember: You can sleep in your car, but you can't drive your house!

12-21-2009, 09:11 PM	#32
toehead93 Drives: 2014 2SS/1LE Join Date: Feb 2007 Location: wpb fl Posts: 3,136 View My Garage	Oh, well I'd rather have a dog. __________________ Used Racing Brake 2 Peice Rotors for sale: http://www.camaro5.com/forums/showthread.php?t=344754 Summit White 2014 2SS 1LE Recaros, NPP exhaust, Nav 2010 2SS A6 - sold.

12-21-2009, 09:24 PM	#33
tjbusa Serious Sleeper Drives: 2010 CGM 2SS/RS M6 Join Date: Nov 2008 Location: Lexington,SC Posts: 3,129	Junkie, I went with the SLP longtube package with hi flo cats, I may want to sell the car one day and I don't want emissions to be an issue. __________________ ************************************* Drive-by Fact of Life: After Monday and Tuesday even the calendar reads... W T F *************************************

12-21-2009, 10:12 PM	#34
1320junkie Drives: The Imperial Army Join Date: Feb 2009 Location: The Darkside Posts: 15,742	Im running no cats...I was having this discussion with a member on the phone and just wanted to hear some open discussion...of course im over 600hp..lol

12-22-2009, 05:55 PM	#36
1320junkie Drives: The Imperial Army Join Date: Feb 2009 Location: The Darkside Posts: 15,742	Nice

12-24-2009, 11:42 AM	#38
TC Drives: 2010 VR 2SS-RS Join Date: Dec 2008 Location: Michigan Posts: 367 View My Garage	I'm running Kook LT's with MBRP X- pipe and back. No cats. At points it is honestly a little to tinny sounding for me. Don't care for the drone either. I was thinking of getting some hi-flo cats, how much would they affect the way it sounds?

12-24-2009, 12:21 PM	#39
Q8Y Drives: '12 F150 Join Date: Jun 2009 Location: KWT Posts: 132 View My Garage	I have ARH LTs 1 7/8 no cats hooked up to the OEM muffler after taking to Nick from ARH this is what he recommended because we don't emission test.the sound is not too loud while cruising you can barely hear it with windows up and at WOT its perfect as volume goes.but I hate the tone itself I think its too metally and raspy especially while idling I was thinking of changing the mufflers with A/M axle back but afraid to be too loud. __________________ recieved 7-10-09 2010 camaro black 2ss/RS/6m

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