stock cats
Safety Car
Joined: Feb 1999
Posts: 4,043
Likes: 342
From: Central NJ
Yes, without issue.....Some LT headers come as a complete package and in some cases have a catless option. I still use my stock cats with my long tube headers. You will need to cut your intermediate pipe in some cases to mount up your headers to your stock cats and catback...
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Advanced
Joined: Feb 2019
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Instructor
Joined: Aug 2018
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Burning Brakes
Joined: Dec 2017
Posts: 755
Likes: 272
Definitely not, but you’re pinching horsepower pennies at that rate. The added restriction of the stockers versus high flow units is probably about 2-5hp (unless they’re clogged). If you’re not going for a max effort big power setup, then you won’t be able to tell the difference.
Racer
Joined: Dec 2017
Posts: 331
Likes: 74
From: Florida
I personally can't stand a cat-less setup after having one a few years ago.
The slight restriction can be made up for in other places in my opinion.
If I did headers, I'd use JBA's which come with specific cut pipes that allow you to utilize the stock cats in their stock location.
By using the JBA set up you keep the stock cats, but if you have an 2000 to 2004 model it will delete the little pup-cats or pre-cats which is a win-win in my book.
Its also worth noting that 2002-2004 Z06 models had the least restrictive exhaust of any model, do to redesigned cats and the better flowing Z06 mufflers starting in 2001.
The cats were the best flowing and still met emissions over any of the other models which needed the pre-cats.
The slight restriction can be made up for in other places in my opinion.
If I did headers, I'd use JBA's which come with specific cut pipes that allow you to utilize the stock cats in their stock location.
By using the JBA set up you keep the stock cats, but if you have an 2000 to 2004 model it will delete the little pup-cats or pre-cats which is a win-win in my book.
Its also worth noting that 2002-2004 Z06 models had the least restrictive exhaust of any model, do to redesigned cats and the better flowing Z06 mufflers starting in 2001.
The cats were the best flowing and still met emissions over any of the other models which needed the pre-cats.
Last edited by 02torchred; Jun 7, 2019 at 02:01 AM.
Burning Brakes
Joined: Dec 2017
Posts: 755
Likes: 272
I personally can't stand a cat-less setup after having one a few years ago.
The slight restriction can be made up for in other places in my opinion.
If I did headers, I'd use JBA's which come with specific cut pipes that allow you to utilize the stock cats in their stock location.
By using the JBA set up you keep the stock cats, but if you have an 2000 to 2004 model it will delete the little pup-cats or pre-cats which is a win-win in my book.
Its also worth noting that 2002-2004 Z06 models had the least restrictive exhaust of any model, do to redesigned cats and the better flowing Z06 mufflers starting in 2001.
The cats were the best flowing and still met emissions over any of the other models which needed the pre-cats.
The slight restriction can be made up for in other places in my opinion.
If I did headers, I'd use JBA's which come with specific cut pipes that allow you to utilize the stock cats in their stock location.
By using the JBA set up you keep the stock cats, but if you have an 2000 to 2004 model it will delete the little pup-cats or pre-cats which is a win-win in my book.
Its also worth noting that 2002-2004 Z06 models had the least restrictive exhaust of any model, do to redesigned cats and the better flowing Z06 mufflers starting in 2001.
The cats were the best flowing and still met emissions over any of the other models which needed the pre-cats.
But it sounds like the OP isn't considering going catless so the argument is null.
Last edited by wscott62893; Jun 7, 2019 at 06:38 AM.
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