Headers and Cats question
Thread Starter
Former Vendor
Joined: Jan 2009
Posts: 12,288
Likes: 23
From: League City Texas
Houston Events Coordinator
St. Jude Donor '11-'12, '14
I believe in the Beer Fairy
Headers and Cats question
Alrighty, So I'm looking at putting headers on and want to know Cats or no cats? If i go with out cats will I still be able to pass inspection etc...
Race Director
Joined: Oct 2005
Posts: 14,999
Likes: 200
From: Bay Area Ca.
Not sure of Texas law.
Why not install cats? Not much power loss/gain.
Without the cats your get some stink.
Since all cars come with cats I would assume you would be illegal in Texas. But then Texas is rather unique. Example, letting College students carry hand guns to class.
Why not install cats? Not much power loss/gain.
Without the cats your get some stink.
Since all cars come with cats I would assume you would be illegal in Texas. But then Texas is rather unique. Example, letting College students carry hand guns to class.
Advanced
Joined: Nov 2010
Posts: 73
Likes: 0
From: OKC OK
Go with cats it is only a 3 hp loss with them. I won't notice 3 hp from the drivers seat. Call Anthony or Bobby over at LG they are doing my car on friday. Just went through the same discussion. I went with the cats for the legal aspect, and possible stink of the exhaust fumes. LG motorsports makes the best headers around by the research and reviews I have read. Just my opinion.
Thread Starter
Former Vendor
Joined: Jan 2009
Posts: 12,288
Likes: 23
From: League City Texas
Houston Events Coordinator
St. Jude Donor '11-'12, '14
I believe in the Beer Fairy
Go with cats it is only a 3 hp loss with them. I won't notice 3 hp from the drivers seat. Call Anthony or Bobby over at LG they are doing my car on friday. Just went through the same discussion. I went with the cats for the legal aspect, and possible stink of the exhaust fumes. LG motorsports makes the best headers around by the research and reviews I have read. Just my opinion.
Drifting
Joined: Apr 2008
Posts: 1,955
Likes: 22
From: Lehigh Valley Pennsylvania
You won't pick up much hp w/o cats, but if you plan to supercharge they can be a source of problems (clogging). You won't pass a sniffer obviously or a visual, but I don't know how you guys inspect in Texas. PA is just an OBD code check, and under 5K/year is emissions exempt.
Safety Car
Joined: Nov 2010
Posts: 3,725
Likes: 84
From: Woodlands (houston) TX
cats, its illegal in texas to have a car made after 1975(i think) without cats. the fines are stupid expensive if you get caught without cats on your car, not to mention it would be illegal for anyone to give you a inspection sticker if you have no cats. the power loss is unnoticable and cats cut down on gas fume smell.
Team Owner
Joined: Oct 2001
Posts: 56,381
Likes: 79
Go with cats it is only a 3 hp loss with them. I won't notice 3 hp from the drivers seat. Call Anthony or Bobby over at LG they are doing my car on friday. Just went through the same discussion. I went with the cats for the legal aspect, and possible stink of the exhaust fumes. LG motorsports makes the best headers around by the research and reviews I have read. Just my opinion.
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Safety Car
Joined: Aug 2007
Posts: 4,836
Likes: 9
From: Rushsylvania Ohio
I just purchased and installed LG Super Pro's with cats. Great price from forum vendor TPS Motorsports. Both TPS and Chuck of COW were very firm in recommending to use cats. Both said not only the gas smell would be bad, but the sound would be VERY loud without them. My C6 is a 2008 with the NPP exhaust. With the LG's the sound is friggin awesome!
Burning Brakes
Joined: Jun 2005
Posts: 807
Likes: 1
From: Miami Lakes FL
I've installed headers on two of my vettes. Both times I started without cats and ended up adding them afterward. If you want to avoid the smell of fumes and want to attain a cleaner sound (IMO)...go with the cats from the get go. Worth every penny.
Thread Starter
Former Vendor
Joined: Jan 2009
Posts: 12,288
Likes: 23
From: League City Texas
Houston Events Coordinator
St. Jude Donor '11-'12, '14
I believe in the Beer Fairy
alrighty looks like consensus is Catted. Now to find a decent set at a decent price 
American of course. Looks like LG's seem to be the best cost wise, not sure about performance though.
American of course. Looks like LG's seem to be the best cost wise, not sure about performance though.
Advanced
Joined: Nov 2010
Posts: 73
Likes: 0
From: OKC OK
LG super pros have been tested by out side sources and are the highest performer in horsepower and torque evenly across the power band. They have a custom three inch collector that is proven just look at the facts. Call and ask the guys in the shop they will tell you all you need to know, and ask the guys here they will give you great advice. I am getting the Super Pro with Cats put on Friday, and I can't wait.
Thread Starter
Former Vendor
Joined: Jan 2009
Posts: 12,288
Likes: 23
From: League City Texas
Houston Events Coordinator
St. Jude Donor '11-'12, '14
I believe in the Beer Fairy
LG super pros have been tested by out side sources and are the highest performer in horsepower and torque evenly across the power band. They have a custom three inch collector that is proven just look at the facts. Call and ask the guys in the shop they will tell you all you need to know, and ask the guys here they will give you great advice. I am getting the Super Pro with Cats put on Friday, and I can't wait.
Le Mans Master
Joined: Jun 2007
Posts: 7,610
Likes: 12
Thread Starter
Former Vendor
Joined: Jan 2009
Posts: 12,288
Likes: 23
From: League City Texas
Houston Events Coordinator
St. Jude Donor '11-'12, '14
I believe in the Beer Fairy
Intermediate
Joined: Apr 2011
Posts: 30
Likes: 0
I would appreciate your feedback keyplyr.
Drifting
Joined: Apr 2011
Posts: 1,540
Likes: 79
From: Houston, Tx
St. Jude Donor '11-'12-'13-'14
I tried to trade my GTO (without cats) in on the C6 I have now and the dealer would not touch it. The cost to change it back was more than it was worth so now I have both.
Drifting
Joined: Apr 2008
Posts: 1,955
Likes: 22
From: Lehigh Valley Pennsylvania
Instructor
Joined: Jul 2010
Posts: 189
Likes: 1
From: Southport NC
SC doesn't have inspections so you can get away with anything! If you know someone in a nearby state that doesn't have the same requirements, maybe you can register it at their address (though it may affect insurance rates). 
My brother boosted the gas mileage on an old cargo van by 50% by cutting out the cats and putting in straight pipe.
My brother boosted the gas mileage on an old cargo van by 50% by cutting out the cats and putting in straight pipe.