Exhaust/CAT Question?? - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

Robbie1227 · 10-01-2010, 10:28 AM

I am installing a Corsa Cat Back system on my SS-M6 and I was wondering:
What do Hi-flo cats do for performance?
Is there any HP gain?
Are they worth doing?
If so, what brand?

CamaroCowboy · 10-01-2010, 10:43 AM

High flow cats are worth it. If you do headers and exhaust go with high flow cats.......they are not near as restrictive as the stock ones.

Robbie1227 · 10-01-2010, 10:51 AM

I am not doing headers at this point.
Are they still worth it?

gearhead440 · 10-01-2010, 11:13 AM

JBA high flows ~$400 from Maryland Speed
SOLO high flows ~$550

You will find several people have purchased both brands and are pleased with their results. The aftermarket CATs are less restrictive than the stock units.

If you decide to use headers later, you can sell the high flow CATs to help offset the header investment.

http://www.camaro5.com/forums/showthread.php?t=79075

http://www.camaro5.com/forums/showth...high+flow+cats

Attached a header vs stock manifold and CAT for comparison.

Robbie1227 · 10-01-2010, 11:39 AM

forgive my ignorance, but are you saying I wouldn't need hi-flo cats with headers?
I am still learning.

BowlingSS · 10-01-2010, 12:50 PM

Quote:

Originally Posted by Robbie1227

forgive my ignorance, but are you saying I wouldn't need hi-flo cats with headers?
I am still learning.

No, I think he is saying that you would need different hi-flow cats.

Bill

Robbie1227 · 10-01-2010, 12:56 PM

ok, got it now.
duh
thx

10-01-2010, 10:28 AM	#1
Robbie1227 Drives: 2015 Camaro Z28/2016 Jeep Sahara Join Date: Mar 2010 Location: South Florida Posts: 544	Exhaust/CAT Question?? I am installing a Corsa Cat Back system on my SS-M6 and I was wondering: What do Hi-flo cats do for performance? Is there any HP gain? Are they worth doing? If so, what brand? __________________ 2015 summit white Z28 #120 TRK DAY -Sun-Tek PPF-C protection film on 2/3 of the car, Moreno Camber plates, American Racing 2" ceramic coated LT headers and X-pipes with No Cats, Taylor red performance wires, NGK plugs, BTR Stage III Cam, MSD Atomic intake, Nick Williams 102mm throttle body, Stage 2 CNC Ported Heads by WCCH, MGW short throw shifter, oil catch can, and a dyno tune to get me to 587 RWHP and 516 RWTQ GONE: 2013 Summit White Camaro ZL1 M6 Roto-Fab CAI, Kooks headers and CAT delete, ATI damper and 10% pulley and balancer! Results: 576 RWHP - 540 RWTQ

10-01-2010, 10:43 AM	#2
CamaroCowboy Drives: 2013 Chevy Truck Join Date: Mar 2010 Location: Copperas Cove, Texas Posts: 1,782 View My Garage	High flow cats are worth it. If you do headers and exhaust go with high flow cats.......they are not near as restrictive as the stock ones. __________________ Texas speed LT Headers and High Flow Cats, Magnaflow 3 inch cat-back Exhaust, SNL V2 Comp CAM, Texas Speed Underdrive Pully, G5CR CAI, Hurst Short Throw Shifter, JetFlo Mass Air Sensor, Custom Grill, Amber AAC Headlight and Fog Light Halo, Amber footwell Lighting, Amber under hood lighting, RK Sport Ram Air /Heat Extractor Hood and ADM Racing Scoop. 447.9 RWHP 428 TQ My car is exactly that, No one has to like it but me!

10-01-2010, 10:51 AM	#3
Robbie1227 Drives: 2015 Camaro Z28/2016 Jeep Sahara Join Date: Mar 2010 Location: South Florida Posts: 544	I am not doing headers at this point. Are they still worth it? __________________ 2015 summit white Z28 #120 TRK DAY -Sun-Tek PPF-C protection film on 2/3 of the car, Moreno Camber plates, American Racing 2" ceramic coated LT headers and X-pipes with No Cats, Taylor red performance wires, NGK plugs, BTR Stage III Cam, MSD Atomic intake, Nick Williams 102mm throttle body, Stage 2 CNC Ported Heads by WCCH, MGW short throw shifter, oil catch can, and a dyno tune to get me to 587 RWHP and 516 RWTQ GONE: 2013 Summit White Camaro ZL1 M6 Roto-Fab CAI, Kooks headers and CAT delete, ATI damper and 10% pulley and balancer! Results: 576 RWHP - 540 RWTQ

10-01-2010, 11:13 AM	#4
gearhead440 Drives: Yellow 2SS, 6 speed manual Join Date: Jan 2010 Location: Concord, NC Posts: 218	JBA high flows ~$400 from Maryland Speed SOLO high flows ~$550 You will find several people have purchased both brands and are pleased with their results. The aftermarket CATs are less restrictive than the stock units. If you decide to use headers later, you can sell the high flow CATs to help offset the header investment. http://www.camaro5.com/forums/showthread.php?t=79075 http://www.camaro5.com/forums/showth...high+flow+cats Attached a header vs stock manifold and CAT for comparison. Attached Images __________________ Hers & His

10-01-2010, 11:39 AM	#5
Robbie1227 Drives: 2015 Camaro Z28/2016 Jeep Sahara Join Date: Mar 2010 Location: South Florida Posts: 544	forgive my ignorance, but are you saying I wouldn't need hi-flo cats with headers? I am still learning. __________________ 2015 summit white Z28 #120 TRK DAY -Sun-Tek PPF-C protection film on 2/3 of the car, Moreno Camber plates, American Racing 2" ceramic coated LT headers and X-pipes with No Cats, Taylor red performance wires, NGK plugs, BTR Stage III Cam, MSD Atomic intake, Nick Williams 102mm throttle body, Stage 2 CNC Ported Heads by WCCH, MGW short throw shifter, oil catch can, and a dyno tune to get me to 587 RWHP and 516 RWTQ GONE: 2013 Summit White Camaro ZL1 M6 Roto-Fab CAI, Kooks headers and CAT delete, ATI damper and 10% pulley and balancer! Results: 576 RWHP - 540 RWTQ

10-01-2010, 12:56 PM	#7
Robbie1227 Drives: 2015 Camaro Z28/2016 Jeep Sahara Join Date: Mar 2010 Location: South Florida Posts: 544	ok, got it now. duh thx __________________ 2015 summit white Z28 #120 TRK DAY -Sun-Tek PPF-C protection film on 2/3 of the car, Moreno Camber plates, American Racing 2" ceramic coated LT headers and X-pipes with No Cats, Taylor red performance wires, NGK plugs, BTR Stage III Cam, MSD Atomic intake, Nick Williams 102mm throttle body, Stage 2 CNC Ported Heads by WCCH, MGW short throw shifter, oil catch can, and a dyno tune to get me to 587 RWHP and 516 RWTQ GONE: 2013 Summit White Camaro ZL1 M6 Roto-Fab CAI, Kooks headers and CAT delete, ATI damper and 10% pulley and balancer! Results: 576 RWHP - 540 RWTQ

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