headers and HP
Thread Starter
Racer
Joined: Jul 2007
Posts: 258
Likes: 0
From: Bethlehem Pa
headers and HP
Hello,
I was looking at purchasing a set of headers (Kooks). I have a Corsa cat back with X-pipe. I was wondering how much HP loss is there with keeping the stock cats? And do the headers bolt on to the stock cats?
Also I noticed that ARH X-pipe is more towards the front of the set up.
How much more beneficial is that compared to having the X-pipe where the H-pipe goes? Like where my X-pipe is now.
My car is a '97 with only 30k miles.
Thanks for your help.
I was looking at purchasing a set of headers (Kooks). I have a Corsa cat back with X-pipe. I was wondering how much HP loss is there with keeping the stock cats? And do the headers bolt on to the stock cats?
Also I noticed that ARH X-pipe is more towards the front of the set up.
How much more beneficial is that compared to having the X-pipe where the H-pipe goes? Like where my X-pipe is now.
My car is a '97 with only 30k miles.
Thanks for your help.
Team Owner
Joined: May 2005
Posts: 23,682
Likes: 9
From: Flagstaff Az.
Don't know about the headers hooking directly up to the cats. That is a question best answered by the manufacturer of the headers, or some one here who has done an install similar to the ones you refer to. I changed the whole system to 3" so did not worry about the direct bolt on. Keeping the cats will cost 3-5 HP and IMHO is not worth the pollution it adds. I run RT's hi-flo cats and HP loss is not enough to worry about. 
Thread Starter
Racer
Joined: Jul 2007
Posts: 258
Likes: 0
From: Bethlehem Pa
I agree about the polution. If I can keep my stock cats I will.
I am just wondering what the HP difference is between stock cats and high flow cats? and can the Kooks bolt on to the stock cats?
I am just wondering what the HP difference is between stock cats and high flow cats? and can the Kooks bolt on to the stock cats?
Melting Slicks
Joined: Dec 2003
Posts: 3,315
Likes: 17
From: Near Jacksonville Fl.
If you have a stock engine and intend to keep it that way there is no advantage going to the hi-flow cats.
Le Mans Master
Joined: Jun 2008
Posts: 5,284
Likes: 235
From: Rockledge FL
everyone keeps talking about how bad no cats are for pollution but i had my 72 454 C3 "sniffed" one time by a buddy that worked at a shop and it passed with flying colors. As long as the car is tuned for no cats shouldnt be any worse than one of these diesels that billow black smoke out constantly.
