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What diameter is the SLP Dual/Dual?

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Old Mar 20, 2014 | 10:20 AM
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Default What diameter is the SLP Dual/Dual?

I have read conflicting things about the diameter of the intermediate pipe on my factory installed Dual/Dual catback. Most say its 3" but necks down at the y pipe connection to 2.75". Is this correct?

My car is not at my house so I can't go measure and I would like to get some extra piping ordered for my new TSP y pipe merge. It comes with a 2.75" reducer welded on so if both neck up to 3" I would like to cut the smaller sections off and make it full 3".
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Old Mar 20, 2014 | 10:53 AM
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I'd call it 3", close enough. It slips over the factory
Y and over the 3" Jet-Hot Y I had. The swage at the
inlet end seems to be for standard pipe sizing, it gets
bigger right after, so fuggedaboudit.
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Old Mar 20, 2014 | 11:14 AM
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Originally Posted by jimmyblue
I'd call it 3", close enough. It slips over the factory
Y and over the 3" Jet-Hot Y I had. The swage at the
inlet end seems to be for standard pipe sizing, it gets
bigger right after, so fuggedaboudit.
x2. It is a 3" catback and I had the setup with the TSP 3" ypipe and it fit like a glove. Sadly, I got rid of it for my TD system.
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Old Mar 20, 2014 | 03:13 PM
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Awesome. I wanted to be sure before I ordered the parts. I plan on doing this mod to both sides:

https://ls1tech.com/forums/generatio...tall-pics.html
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Old Mar 20, 2014 | 03:19 PM
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3" I would say.....
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