Header ? for LT1 autos with cats
Drifting
Joined: Jan 2002
Posts: 1,608
Likes: 0
From: I Hate Tourists FL
Re: Header ? for LT1 autos with cats (Ramrod92)
Check with Exotic Muscle they are offering a 100 discount on there new long tubes $540 ceramic coated. Give Trevor a call @480-967-4222 good guy to deal with.
Le Mans Master
Joined: Jul 1999
Posts: 8,683
Likes: 6
From: Phoenix AZ
Re: Header ? for LT1 autos with cats (Ramrod92)
You're going to have to get some pretty small cats to make the long tubes work with the auto tranny...I would recommend Random Tech metal matrix, they are the smallest I have seen...but also some of the most expensive...here's a pic of mine...
Team Owner
Joined: Nov 1999
Posts: 32,782
Likes: 11
From: Former NCM Drag Racing coordinator, National director Corvette Challenge Spring Hill, Tennessee: Whiting, New Jersey
Cruise-In VI Veteran
Cruise-In VII Veteran
Re: Header ? for LT1 autos with cats (Ramrod92)
There is NO WAY to use cats on an LT1 with long tubes and a A4.
I've tried :cry
I've tried :cry
Burning Brakes
Joined: Jun 2001
Posts: 838
Likes: 2
From: Out by the bridge again, TampaBay
Re: Header ? for LT1 autos with cats (Ramrod92)
If you want to spend as much or more for the cats as you do the long tubes it can be done. You will need an expert exhaust shop and the random tech metal matrix cats. You'll also be putting a lot of heat into the tranny pan. Good luck! :chevy
Burning Brakes
Joined: Aug 2000
Posts: 1,052
Likes: 0
From: Warrenville IL
Re: Header ? for LT1 autos with cats (Ramrod92)
What's the best setup to use if you have an auto and need to have cats? :crazy:
Don't waste your time with shorty headers, trust me.
I'm with Mackey, I have yet to see an Lt1 A4 car with longtubes and cats.
Even if the Random cats in the pic above do work, are you going to see enough of a gain to justify spending over $1200 ?
Those Randoms had to cost a fortune, I know the normal Lt1 Random cats go for around $300 a piece so for a pair as much as a set of long tubes cost.
IMO there are only 2 ways to go here, either leave the stock setup in or get longtubes & ditch the cats.
just my .02
[Modified by nickd, 11:28 PM 10/11/2002]
Team Owner
Joined: Nov 1999
Posts: 32,782
Likes: 11
From: Former NCM Drag Racing coordinator, National director Corvette Challenge Spring Hill, Tennessee: Whiting, New Jersey
Cruise-In VI Veteran
Cruise-In VII Veteran
Re: Header ? for LT1 autos with cats (nickd)
Cartek put alot of R&D time in trying to make cats work on my car. We even went as far a using an L98 "Y" pipe and single cat but on the first dyno run it blew off the car, exploded. Another problem is to work correctly the cat should be as close to the exhaust manifolds as possible becuse the cat need alot of heat to work correctly. They will loose some efficency down stream in the exhaust. And then there is the problem of the trans. All the heat from the cats will boil the trans fluid.
Good luck.
Good luck.
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