dual cats?
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Junior Member
Joined: May 2002
Posts: 49
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From: abq, NM
dual cats?
I have a 87 GTA 350 with stock manifolds and a single 3" exhaust with single cat. Before I get headers I want to know Should I get dual cats or is is one high flow cat enough. This will be for a about 450hp engine.
Thanx
Thanx
Supreme Member
Joined: Oct 2001
Posts: 1,712
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From: Midwest City, Oklahoma
Car: '87 Z
Engine: 355 in the works
Transmission: 700R4
I looked into dual cats awhile back, it seems like it's just a big hassle. I'm just gonna get a nice 3 inch setup with single cat. You can always get 4 inch mufflex 
I don't think that'll be restricting anything anytime soon....
I don't think that'll be restricting anything anytime soon.... 
Joined: Mar 2000
Posts: 43,187
Likes: 43
From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
Dual 2-1/4" will have more flow area than a single 3". If you're really going to put out that many ponies, you might want to consider the duals.
What headers were you considering?
What headers were you considering?
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