30THWS6#357

Pretty new to LS1's. I plan in getting a cutout installed in the "I" pipe and was wondering what size the factory "I" pipe is. I figured it's 3 inch....just making sure. I tryed a search....either my computer goofed up or it doesn't work. Thanks Guys

blk97z28

iTrader: (3)

I believe it is actually 2.5in. Devin

30THWS6#357

well, i just did a search through google and it looks like alot of people are saying it's actually 2.75. I would think they could weld a 3 inch cutout in the I pipe with no problems. Plus, 2.75 cutouts aren't even available through summit.

Rob98LS1

iTrader: (5)

Well, countless people run them so it must not be a problem to run a 3" cutout on the a 2.75" intermediate pipe.

sheikss

iTrader: (11)

You are correct on the intermediate pipe. Very sharp looking 3rd gen I'd love to see some more pics of it.

blk97z28

iTrader: (3)

My bad ya, they are 2.75 and they have a reducer cone that I believe a 3in cutout wuold work that way.

RedRocketZ28

iTrader: (19)

3 in cutouts work great on stock piping. I had one on my LT1 and now have one on my LS1. It is pretty loud though. I could stand the noise on the LT1 but on the LS1 I really don't care for it. I must have gotten used to the Magnaflow catback that my LT1 had. I will be buying a catback pretty soon.

Rob98LS1

iTrader: (5)

did you like the tone and sound of your LT1 more than your LS1?

30THWS6#357

thanks for the replys guys. I've got a cutout on my Z28 and I love it...the louder, the better

for those of you that want to check out my 3rd gen, here ya go:

1991 Z28 Camaro "The Sickness"

RedRocketZ28

iTrader: (19)

Yeah I did. I think the LT1 sounds better overall anyway. The sound of my LS1 doesn't sound as smooth as my LT1 did.