: Kooks Long Tube Headers vs. Stock Manifolds



2002BlueWS6
10-01-11, 01:02 AM
I'm in need of swapping out some Kooks Long Tube headers on an 04 CTSV for the stock manifolds and cats. Where is the best place to pick up some stock manifolds and cats? I didn't find any in the classified section. I would assume someone would want to trade but if I cant make a deal and need to purchase the manifolds where should I get them? Do they come with the cats or do I have to buy those as well?

Dan_Gurney
10-01-11, 01:09 AM
seems like I see some come up on ebay every now and then. The Cats are a seperate part but often are still together. You will need to fab the connection of the stock cats to the exhaust as this is cut for long tubes

yooper
10-01-11, 06:55 AM
I will swap my stock 04 exhaust manifolds with cats for your kooks long tube headers. How old are the Kooks, what size and shape?

2002BlueWS6
10-01-11, 02:40 PM
They are full length 1.75". PM me what you are willing to offer. Headers are in Orange County. Any idea what it will cost to ship to Michigan?

wcryan
10-01-11, 04:41 PM
I'm local and have stock manifolds and cat's. email me wcryan@hotmail.com

Cats have very low mileage on them

2002BlueWS6
10-03-11, 10:32 PM
I'm local and have stock manifolds and cat's. email me wcryan@hotmail.com

Cats have very low mileage on them

Email sent. Thanks

Rakenjevnk
10-04-11, 10:46 AM
Kooks nabbed!

2002BlueWS6
10-04-11, 10:33 PM
Kooks nabbed!

Still available.

WakikiVee
10-05-11, 12:51 AM
How much are you looking to get??

odla
10-05-11, 06:50 AM
pm replied to.

rand49er
10-05-11, 08:29 AM
This thread is like seeing the tip of an iceberg.

DDS rollin a CTS
10-05-11, 11:02 PM
Anyone near indiana have some aftermarket headers and cats they want to get rid of? I'll trade you my stock ones straight up!

rangerrob
10-05-11, 11:05 PM
Anyone near indiana have some aftermarket headers and cats they want to get rid of? I'll trade you my stock ones straight up!

lol!

2002BlueWS6
10-06-11, 04:51 PM
If the vehicle was tunned for the Kooks and we put the stock manifolds and cats back on, I should pass smog right? Or is it possible that because its tuned, it will still fail even with the stock manifolds and cats? (I can't just reflash the tune because a board member custom tuned the vehicle - so I wouldn't even know how to return the tune back to stock)

darkman
10-06-11, 05:32 PM
If the vehicle was tunned for the Kooks and we put the stock manifolds and cats back on, I should pass smog right? Or is it possible that because its tuned, it will still fail even with the stock manifolds and cats? (I can't just reflash the tune because a board member custom tuned the vehicle - so I wouldn't even know how to return the tune back to stock)

Normally when headers are installed with a stock tune the engine runs rich. So when reinstalling stock manifolds and cats one would expect the car to run lean. If this causes a lean code to set, you presumably cannot pass. If the lean code does not set, and it may not, I would think the car would pass a sniffer with a lean mixture.

jlctsv
10-10-11, 02:21 AM
I've got a stock PCM from my 04 V. Pm me if you want it. I'm lookin for an ls9x clutch with the spacer if anyone's got a spare.