Considering headers with high flow cats, can I hear yours? - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

AlexM · 05-17-2013, 07:59 PM

I would like to meet some of the members with headers and high flow cats installed to see if the sound it's what I look for or if it's too loud for me... Northern VA.
I listened to many clips online... impossible to be objective...

Also, will the MPG go up, down or stay the same under the same driving conditions while on stock manifold?

See my signature for the MODS I have so far.

BehePerformance · 05-20-2013, 12:21 PM

Alex,
It probably depends more on what mufflers you have at the back of the car than anything else. The cats themselves act as pretty decent resonators and keep the exhaust from droning too much. You're probably right that without hearing it, and in fact driving in a car, in person it's hard to get a good idea of just how loud it'll be. For example under WOT, the KL Camaro has headers, and 4 resonators and that's all there is to the exaust, but that's still 2 extra resonators over anyone else with the same exhaust and on a cold humid day it's 106dB from 50 feet away... it's loud, lol, but in videos it doesn't always sound that loud.

MPG will be more a result of the tune than anything else, but cruising the difference should be negligible, it'll depend on speeds and loads. It will be much worse under WOT though, the more air you flow, the more fuel you need to flow.

Micker31 · 05-20-2013, 06:54 PM

Let him hear my dyno run Andy!

edog · 05-22-2013, 10:23 AM

Where are you located?

AlexM · 05-22-2013, 10:33 AM

Northern VA, Leesburg or Sterling area

BehePerformance · 05-22-2013, 11:54 AM

Quote:

Originally Posted by Micker31

Let him hear my dyno run Andy!

Lol, I'm posting the videos shortly!

Retro69 · 05-22-2013, 01:15 PM

http://youtu.be/Qu1xiPkbaB0

This is with Dynatech LT headers, hi-flow cats and stock catback.

Sent from my iPad using Tapatalk HD

pureflusher · 05-22-2013, 02:04 PM

Im between Baltimore and DC.

AMCBimmer · 08-11-2013, 12:03 PM

I'm in Aldie with a ZL1

AlexM · 08-11-2013, 02:53 PM

Quote:

Originally Posted by AMCBimmer

I'm in Aldie with a ZL1

Yeah, but ZL1 it's different. I envy you

Gibby'SS · 08-14-2013, 07:15 PM

I'm in Leesburg. I have Kooks heads and 3" exhaust. Shoot me a PM if you want to meet up sometime.

AlexM · 08-14-2013, 07:43 PM

Quote:

Originally Posted by Gibby'SS

I'm in Leesburg. I have Kooks heads and 3" exhaust. Shoot me a PM if you want to meet up sometime.

Wow, this is great! I'll PM you

MarylandSpeed · 08-14-2013, 11:04 PM

If you decide to go with Kooks, give us call. We will hook you up with a great deal plus install!

05-17-2013, 07:59 PM	#1
AlexM Drives: Used to be 2012 Camaro 2SS/RS L99 Join Date: Jan 2012 Location: Northern VA Posts: 636	Considering headers with high flow cats, can I hear yours? I would like to meet some of the members with headers and high flow cats installed to see if the sound it's what I look for or if it's too loud for me... Northern VA. I listened to many clips online... impossible to be objective... Also, will the MPG go up, down or stay the same under the same driving conditions while on stock manifold? See my signature for the MODS I have so far. __________________ BEE used to have MyLink with NAV Black 10 spoke FR41 wheels (ZL1 Replica) Roto-fab CF CAI / Scoop and Washer Bottle Relocation KIT Vmax yellow painted ported TB Solo HF Cats with Kooks 2.5" catback SLP Replica Spliter, CF Stripes and CF bowties Hawk ceramic brake pads OEM Strut Tower Brace - Yellow Plastidip Range device - AFM Delete Halo/DRL Harness (Halo/DRL on day and night while driving) Engine Cover/Air Compressor Delete

05-22-2013, 10:23 AM	#4
edog Drives: 2010 2SS/RS IOM Join Date: Oct 2008 Location: F'BURG VA Posts: 3,828 View My Garage	Where are you located? __________________ Update...Build in process, Forged Rods, Pistons and rings, Johnson Lifters, NOVI1500 ECS SC, 13lb boost or more, LS3 Conversion 114/228/241 COMP CAM, Frostbite 4 row Aluminum radiator, 6L80 built, Circle D 6L80 PRO SERIES MULTI 258MM 2D, Stock 3.45 gears, 1-7/8 American Racing Headers w/HF cat, X-Pipe, Lingenfelter dual fuel pump, E-85 flex sensor, ATI super damper pulley, Ported TB, 160 therm, Trans cooler, Pedder's sways/end links/sub frame bushings, BMR trailing arms & toe rods, Coil overs. HP/TQ pending

05-22-2013, 10:33 AM	#5
AlexM Drives: Used to be 2012 Camaro 2SS/RS L99 Join Date: Jan 2012 Location: Northern VA Posts: 636	Northern VA, Leesburg or Sterling area __________________ BEE used to have MyLink with NAV Black 10 spoke FR41 wheels (ZL1 Replica) Roto-fab CF CAI / Scoop and Washer Bottle Relocation KIT Vmax yellow painted ported TB Solo HF Cats with Kooks 2.5" catback SLP Replica Spliter, CF Stripes and CF bowties Hawk ceramic brake pads OEM Strut Tower Brace - Yellow Plastidip Range device - AFM Delete Halo/DRL Harness (Halo/DRL on day and night while driving) Engine Cover/Air Compressor Delete

05-22-2013, 01:15 PM	#7
Retro69 Drives: 2018 Camaro ZL1 Join Date: Jun 2011 Location: Morgan, UT Posts: 1,359	http://youtu.be/Qu1xiPkbaB0 This is with Dynatech LT headers, hi-flow cats and stock catback. Sent from my iPad using Tapatalk HD __________________

08-11-2013, 12:03 PM	#9
AMCBimmer Drives: 2002 BMW M5 Join Date: Jun 2011 Location: Aldie, VA Posts: 250	I'm in Aldie with a ZL1 __________________

05-20-2013, 12:21 PM	#2
BehePerformance Drives: Camaro Join Date: Apr 2013 Location: Beltsville, MD Posts: 21	Alex, It probably depends more on what mufflers you have at the back of the car than anything else. The cats themselves act as pretty decent resonators and keep the exhaust from droning too much. You're probably right that without hearing it, and in fact driving in a car, in person it's hard to get a good idea of just how loud it'll be. For example under WOT, the KL Camaro has headers, and 4 resonators and that's all there is to the exaust, but that's still 2 extra resonators over anyone else with the same exhaust and on a cold humid day it's 106dB from 50 feet away... it's loud, lol, but in videos it doesn't always sound that loud. MPG will be more a result of the tune than anything else, but cruising the difference should be negligible, it'll depend on speeds and loads. It will be much worse under WOT though, the more air you flow, the more fuel you need to flow.

05-20-2013, 06:54 PM	#3
Micker31 "Precious" 2011 SS/RS Drives: 2011 SS/RS, f1X procharger, LSX427 Join Date: Apr 2013 Location: Stafford va Posts: 285 View My Garage	Let him hear my dyno run Andy!

08-14-2013, 07:15 PM	#11
Gibby'SS Drives: 2011 Camaro SS Convertible Join Date: Aug 2012 Location: N. Virginia/OBX Posts: 113 View My Garage	I'm in Leesburg. I have Kooks heads and 3" exhaust. Shoot me a PM if you want to meet up sometime. __________________ [COLOR="Blue"]CAI Intake, Kooks 1 7/8" LT headers and full exhaust, Vmax Ported Throttle Body, TFS Gen X 255 heads, custom VVT cam by Pat Guerra, RX Catch Can, Pedderized suspension, ghosted side markers, Technostalgia tail lights, Big Worm spears, Forgestar f14 in gunmetal, Nitto Invo 275/315 455HP/422TQ.

08-14-2013, 11:04 PM	#13
MarylandSpeed Account Suspended Drives: 2012 ZL1 & 2010 2SS/RS Join Date: Jul 2009 Location: Maryland Posts: 3,378	If you decide to go with Kooks, give us call. We will hook you up with a great deal plus install!