Exhaust Question

Mckenzie · September 4, 2010

What is the diameter of the stock piping going into the muffler on my 2001 z71 extended cab? is it 3 inches? Will a muffler with a 3 inch inlet and 2 1/2 inch outlet fit in there good?

dlstewart01 · September 4, 2010

What is the diameter of the stock piping going into the muffler on my 2001 z71 extended cab? is it 3 inches? Will a muffler with a 3 inch inlet and 2 1/2 inch outlet fit in there good?

outside dia is 2.75 inches

Mckenzie · September 5, 2010

What is the diameter of the stock piping going into the muffler on my 2001 z71 extended cab? is it 3 inches? Will a muffler with a 3 inch inlet and 2 1/2 inch outlet fit in there good?

outside dia is 2.75 inches

you are absolutely positive of this?

dlstewart01 · September 5, 2010

What is the diameter of the stock piping going into the muffler on my 2001 z71 extended cab? is it 3 inches? Will a muffler with a 3 inch inlet and 2 1/2 inch outlet fit in there good?

outside dia is 2.75 inches

you are absolutely positive of this?

Is this positive enough...

Ah hell, heres one more...Thats the best I can do holding the camera and the tape. Its still 2.75.

and GMpartsdirect says the intermediate pipe is the same from 99 through 2007...

(Intermed pipe - 5.3 liter gas - 5.3 liter gas

99-07)

Mckenzie · September 6, 2010

What is the diameter of the stock piping going into the muffler on my 2001 z71 extended cab? is it 3 inches? Will a muffler with a 3 inch inlet and 2 1/2 inch outlet fit in there good?

outside dia is 2.75 inches

you are absolutely positive of this?

Is this positive enough...

Ah hell, heres one more...Thats the best I can do holding the camera and the tape. Its still 2.75.

and GMpartsdirect says the intermediate pipe is the same from 99 through 2007...

(Intermed pipe - 5.3 liter gas - 5.3 liter gas

99-07)

alright thanks man, just wanted to double check!

jblakeney · September 6, 2010

What is the diameter of the stock piping going into the muffler on my 2001 z71 extended cab? is it 3 inches? Will a muffler with a 3 inch inlet and 2 1/2 inch outlet fit in there good?

outside dia is 2.75 inches

you are absolutely positive of this?

Is this positive enough...

Ah hell, heres one more...Thats the best I can do holding the camera and the tape. Its still 2.75.

and GMpartsdirect says the intermediate pipe is the same from 99 through 2007...

(Intermed pipe - 5.3 liter gas - 5.3 liter gas

99-07)

I'd go for the 2.75 as the dial calipers said........ What did you do, by your truck and instantly remove the exhaust??? It looks nice and clean.....

Jbo

dlstewart01 · September 6, 2010

What is the diameter of the stock piping going into the muffler on my 2001 z71 extended cab? is it 3 inches? Will a muffler with a 3 inch inlet and 2 1/2 inch outlet fit in there good?

outside dia is 2.75 inches

you are absolutely positive of this?

Is this positive enough...

Ah hell, heres one more...Thats the best I can do holding the camera and the tape. Its still 2.75.

and GMpartsdirect says the intermediate pipe is the same from 99 through 2007...

(Intermed pipe - 5.3 liter gas - 5.3 liter gas

99-07)

I'd go for the 2.75 as the dial calipers said........ What did you do, by your truck and instantly remove the exhaust??? It looks nice and clean.....

Jbo

That exhaust only has a few miles on it. It hangs out in the garage. I had a GMPP exhaust, then a Corsa since 2006

MYZ-71 · September 6, 2010

I installed a flowmaster 3" in and out on my 01, had to get tailpipe swelled to fit and swell a piece to connect front as muffler shorter than stock, don`t think I`d go with 2.5" out, better to go bigger than reduce flow by going down.

jblakeney · September 7, 2010

What is the diameter of the stock piping going into the muffler on my 2001 z71 extended cab? is it 3 inches? Will a muffler with a 3 inch inlet and 2 1/2 inch outlet fit in there good?

outside dia is 2.75 inches

you are absolutely positive of this?

Is this positive enough...

Ah hell, heres one more...Thats the best I can do holding the camera and the tape. Its still 2.75.

and GMpartsdirect says the intermediate pipe is the same from 99 through 2007...

(Intermed pipe - 5.3 liter gas - 5.3 liter gas

99-07)

I'd go for the 2.75 as the dial calipers said........ What did you do, by your truck and instantly remove the exhaust??? It looks nice and clean.....

Jbo

That exhaust only has a few miles on it. It hangs out in the garage. I had a GMPP exhaust, then a Corsa since 2006

I pulled mine off with about 35k on the truck........ It is still nice and shiny toooo (or it was the last time I saw it, I used 0000 steel wool on it every time I washed the truck), only I have ABSOLUTELY NO IDEA where I put it........ It is either in the shop or in a storage house...... I forgot where I put it.

Jbo

dlstewart01 · September 7, 2010

Now I loose stuff in the garage but its hard to loose that big mutha..

gleno97 · September 7, 2010

I cut my exhaust off with only 38km on the odometer. The cat back kit only took about 1 1/2 hrs to install but I laid under the truck for about 30 mins before I could bring the sawzall to the pipe. It was hard to start cuttin' up my brand new truck to install the new exhaust but it really sounds and looks nice!!!

jblakeney · September 7, 2010

Mine came off in one PIECE...... I can put it back at any POINT..... I could not use the saws-all or cut off wheel. It would have to have been RUINED for me to cut it up.... I put it up for safe keeping's in case one day I need my truck to be quite again.

Jbo