Stock Exhaust size
This is a discussion on Stock Exhaust size within the External Engine forums, part of the LSx Technical Help Section category; What size pipe is in the factory catback? Specifically the size where the y-pipe connects to the catback. Planning a ...
07-12-2011, 01:53 PM #1
Stock Exhaust size
What size pipe is in the factory catback?
Specifically the size where the y-pipe connects to the catback.
Planning a cutout.
07-12-2011, 02:56 PM #2
- Join Date
- Feb 2009
- Mansfield, PA
Black & Blue
- '02 WS.6 / '07 Suburban
I never measured it... would guess it is at least 3".
07-12-2011, 04:40 PM #3
I have my stock catback in my basement so I took a measurement of the OD. It measured 2-3/4". Same with the tips. It seems odd, but maybe this is what 3" is supposed to measure.
07-13-2011, 04:49 AM #4
Thanks 35th-ANV-SS. I thought it was 2.75. I have another car setting on my ramps and stands right now, but the band clamp failed between the y-pipe and catback. Since I have to order parts, I figured why not a cutout.
Any recommendations on brand?
07-13-2011, 06:31 AM #5
Stock is definitly not 3"...2 3/4" sounds about right.94 m6 Formula - Sold
2000 NHRA Formula - Always For Sale
07-13-2011, 06:52 AM #6
I think its 2 3/4. When I put my 3" catback on a while ago I remember it was a bit bigger
07-13-2011, 12:28 PM #7
Like I mentioned, I actually measured it
DMH or QTP I've heard good things about. I personally don't have one as my set-up is already ridiculously loud.
07-13-2011, 01:53 PM #8
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