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Direct fit Cat and Muffler sizes?

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Direct fit Cat and Muffler sizes?

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Old

Jul 5, 2005 | 07:46 PM

#1

Thread Starter

Senior Member

Joined: Dec 2004

Posts: 909

Likes: 1

From: New York

Car: 91 Firebird

Engine: 3.1 V6

Transmission: TH-700-R4

Direct fit Cat and Muffler sizes?

On a 3.1 V6,what are the exact numbers I need on the in/out size of a cat and muffler?

Old

Jul 6, 2005 | 10:39 AM

#2

Moderator

iTrader: (14)

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

If they're direct fit, size doesn't matter.

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