Aftermarket cat question.

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Sep 3, 2005 | 01:17 PM

ken3983

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Senior Member

Joined: Oct 2001

Posts: 504

Likes: 1

From: reidsville,nc,usa

Car: 1989 Firebird Formula 350

Engine: 350 TPI

Transmission: 700R4

Axle/Gears: 9 Bolt Borg Warner 3.27 gears

Aftermarket cat question.

I have removed my smog pump and I was wondering if anyone makes a direct fit high flow cat for my 3.1. Also, I am looking for one that does not have the air tube since I have no pump now.

Ken

Sep 3, 2005 | 03:23 PM

bru333

Senior Member

Joined: Oct 2004

Posts: 575

Likes: 1

From: Smithfield, NC

Car: 1987 Camaro SC

Engine: 2.8L MPFI (rebuilt)

Transmission: 700R4 swapped to T5

Axle/Gears: 3.42 open

Catco and magnaflow. They have a cap on the air tube, you take it off if needed, leave it capped if not. Summit carries both.

Sep 3, 2005 | 06:13 PM

91greenbird

Supreme Member

iTrader: (4)

Joined: Aug 2004

Posts: 1,417

Likes: 0

From: southern maryland

Car: 2012 Ram express

Engine: 5.7 hemi

Transmission: auto

Axle/Gears: 3.55

Dynomax makes a direct fit cat also.

Sep 3, 2005 | 06:50 PM

V8 Slayer

Senior Member

Joined: Dec 2004

Posts: 909

Likes: 1

From: New York

Car: 91 Firebird

Engine: 3.1 V6

Transmission: TH-700-R4

You could also go with the TPIS and Random Tech super high flow cats but they cost like $200.

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