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Pipe Sizing?

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Old

Jan 24, 2003 | 07:46 PM

#1

Thread Starter

Junior Member

Joined: Jul 2002

Posts: 14

Likes: 0

From: Saskatoon

Car: 1991 Z28

Engine: 5.0

Transmission: Auto

Pipe Sizing?

Dumb question, but its winter so I cant measure right now. What is the size of STOCK exhaust pipe on a 91 Z28 305? Is it 2 1/2 or 2 3/4?

Old

Jan 24, 2003 | 09:15 PM

#2

Senior Member

Joined: Jul 2001

Posts: 743

Likes: 0

From: Carlisle, PA

If it had factory dual cats it should be 2 3/4. single cat i'm not sure, but i would guess 2 1/2.

Old

Jan 24, 2003 | 09:48 PM

#3

Supreme Member

Joined: Mar 2001

Posts: 5,144

Likes: 2

From: CC, TX

Car: 1999 Yamaha Banshee

Engine: 379cc twin cyl 2-stroke stroker

Transmission: 6 spd manual

Axle/Gears: 14/41 tooth

i think that bretts right

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