Removing cats from my v6 - Page 2 - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

JR-Vette · 10-31-2011, 11:12 PM

Quote:

Originally Posted by bklyn_tap

I'm sure it's been asked but can anyone give some info on some of the benefits/ drawback by doing this. I live in FL so emissions aren't the issue. Will I need a tune and how much should everything cost? Thanks for the help

Design of CATs today do not reduce performance so leave them
In fact the 2012 Corvette now has 4 CATs and there is zero performance loss over pre 2012 LS3s.

OOLIE · 10-31-2011, 11:27 PM

Not pretending to be an expert, but isn't it still a filter that will become less efficient over time?

JR-Vette · 11-01-2011, 02:04 PM

Since CATs used by nameplates by federal law have to be warranted 8 years and how close the PCM keeps the AFR to have cleaner exhausts they do not degrade as badly as older CAT designs.
What decreases CAT life more is placing CATs further downsteam along with 02 sensors where exhaust is cooler such as long tube headers and the PCM calibration not correcting properly for mods.

Look at cars like the ZR1 Corvette with all those CATs and still put out 640 HP, we get about 700 when tuning them and CATs are not limiting performance

OOLIE · 11-02-2011, 10:22 PM

Thanks good info. Always trying to learn

bklyn_tap · 11-03-2011, 01:40 PM

I just want to remove the cats to make the car louder and lighter

KalCorp · 11-03-2011, 01:49 PM

No CAT's ? I was told you have a 50/50% of getting the tail Pipe Flame kit to work.

If you have a turbo or SC it would work 100% from the V6.

I am in Florida also i was looking at this. just didn't want to wipe my warranty yet.

10-31-2011, 11:27 PM	#16
OOLIE Drives: 2011 LS Join Date: Oct 2010 Location: FL Posts: 1,643	Not pretending to be an expert, but isn't it still a filter that will become less efficient over time? __________________

11-02-2011, 10:22 PM	#18
OOLIE Drives: 2011 LS Join Date: Oct 2010 Location: FL Posts: 1,643	Thanks good info. Always trying to learn __________________

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11-01-2011, 02:04 PM	#17
JR-Vette Drives: 1999 500 HP Corvette Join Date: Jan 2010 Location: West Coast Posts: 164	Since CATs used by nameplates by federal law have to be warranted 8 years and how close the PCM keeps the AFR to have cleaner exhausts they do not degrade as badly as older CAT designs. What decreases CAT life more is placing CATs further downsteam along with 02 sensors where exhaust is cooler such as long tube headers and the PCM calibration not correcting properly for mods. Look at cars like the ZR1 Corvette with all those CATs and still put out 640 HP, we get about 700 when tuning them and CATs are not limiting performance

11-03-2011, 01:40 PM	#19
bklyn_tap Drives: 2011 camaro LS Join Date: Mar 2011 Location: Clearwater FL Posts: 119 View My Garage	I just want to remove the cats to make the car louder and lighter

11-03-2011, 01:49 PM	#20
KalCorp Space Coast Camaros Drives: 2012 Camaro Vert Join Date: Sep 2011 Location: Palm Bay , FL Posts: 1,281	No CAT's ? I was told you have a 50/50% of getting the tail Pipe Flame kit to work. If you have a turbo or SC it would work 100% from the V6. I am in Florida also i was looking at this. just didn't want to wipe my warranty yet.