Options for the dual cat setup?
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Member

Joined: Nov 2001
Posts: 245
Likes: 1
From: somewhere over the pond
Car: '91 Z28
Engine: LB9
Transmission: T5
Axle/Gears: 3.42
Options for the dual cat setup?
I have the stock dual cat setup on my car with Hooker shorty-headers and the borla catback.
Now I have to replace one of the cats. So far I found the Magnaflow setup (36479) with seems to bolt right up.
Is this any good or are there other better options?
I know that this question must be asked a few times, but I didnt find an actual thread about this.
Now I have to replace one of the cats. So far I found the Magnaflow setup (36479) with seems to bolt right up.
Is this any good or are there other better options?
I know that this question must be asked a few times, but I didnt find an actual thread about this.
Joined: Mar 2000
Posts: 5,703
Likes: 132
From: Orange, CA
Car: '90 Trans Am-12.45@110.71
Engine: 355 w/AFR 195's Elem. 400/430 HP/TQ
Transmission: Tremec T-56
Axle/Gears: 12 Bolt 3.73
Re: Options for the dual cat setup?
36479 must be the one with the new cats. (old...23479)
Here is a picture of the old setup and what you need to do to make it fit.
I have marked where it needs to be cut, then you need to build new connections to connect to your headers.
Also the end narrows down to 2 3/4" so cut it and add a 3" connection.
Here is a picture of the old setup and what you need to do to make it fit.
I have marked where it needs to be cut, then you need to build new connections to connect to your headers.
Also the end narrows down to 2 3/4" so cut it and add a 3" connection.
Thread Starter
Member

Joined: Nov 2001
Posts: 245
Likes: 1
From: somewhere over the pond
Car: '91 Z28
Engine: LB9
Transmission: T5
Axle/Gears: 3.42
Re: Options for the dual cat setup?
its not hooker-brand headers, there are hedman shorties 66491 so probably this makes it easier to mount!?
are there other possibilities? should I just buy two new converters?
are there other possibilities? should I just buy two new converters?
Last edited by swisscheese; May 13, 2011 at 01:38 AM.
Supreme Member
Joined: Jun 2006
Posts: 2,199
Likes: 1
From: West-Central
Car: 91 Trans am
Engine: built 360 TBI
Transmission: built 700r4
Axle/Gears: 10bolt/3.23
Re: Options for the dual cat setup?
I have this dual cat, brand new in box, taking up place in the basement http://www.summitracing.com/parts/CTO-4153/ PM if interested.
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