killerbeez

iTrader: (9)

I'm looking just to get a cheap cut out to put on my y pipe or after the y-pipe, what size is the factory exhaust, 3"?
thanks

thebart455

lol stock isny no 3" im pretty sure its 2 1/2" y pipe all the way to the muffler

tylerdj

iTrader: (31)

Pretty sure it's 2 5/8". You should be able to use a 3" cutout just fine though.

Gary Z

The stock intermediate pipe inside diameter of my 02 Z28 is 2.75 inch.

Fabian

iTrader: (5)

A 3 inch cutout will NOT work.

I tried a 2.5 on my 02 Z28, too small. So we tried a 3 inch on my cousins 01 SS, too big.

Everyone says a 3 inch is where its at, no dice. 2 3/4 is the way to go. Learn from my mistakes

02silvaZ

iTrader: (12)

2 3/4" intermediate pipe, 2 1/4" out to the tips

RedRocketZ28

iTrader: (19)

Wrong. 3 inch works perfect. Had one put on my 95 Z28 and my 99 Z28. Those both having the 2 3/4 in pipe. Had a 3 in put on my SS which has the 3 in exhaust and it worked perfect as well.

3 inch cutout is what you want/need.

luis_ws6

iTrader: (1)

i had a 3" when i had my cut out.

Pntbll309

iTrader: (33)

Me too.

tylerdj

iTrader: (31)

Wrong. 3" will work just fine.

Fabian

iTrader: (5)

I dont see how. I ordered a 3 inch cutout from Thunder Racing for a 2001 SS. Everything on it was stock.

We had to cut the edges to crush them in and it looked like absolute ****. Let me see pics of yours as well as overall diameter measurements .

Maybe your location was different? We installed it on the little spot on the I pipe where the cutout fits in that little groove. Did you guys actually install them yourself or did you have a shop do it? If a shop did it, then yeah they can make it work but the one I did did NOT slip fit. Not even close.

buddha845

iTrader: (3)

3" cutout here too, you're good to go

Fabian

iTrader: (5)

Id like to see pics as well as know if you actually did those installs yourself or took it to someone. Unless my cousin had a weird SS.....

bluebeast

iTrader: (1)

just buy a 3 inch catback and you will gain power and get better looks...... magnaflow $380 shipped from maryland speed!