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TSP ORY size question.

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Old May 15, 2011 | 10:10 PM
  #1  
SSmoked1's Avatar
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Default TSP ORY size question.

I bought a used LT1 magnaflow and had to cut the I pipe down to fit my Y. The magnaflow is 3 inch OD. Without getting back under and taking it apart I need to know the size the tsp ory pipe that will be bolting to the cat back. I swear is was 2.5 but not sure if it's od or id. I'm going to buy a reducer and weld it to the I pipe then clamp it to the y. It's just way too lose fitting right now to seal. I emailed tsp and they said it was 3inch but it is not. Just wondering if anyone on here knows off hand so I don't need to take it all apart.
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Old May 16, 2011 | 07:15 AM
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c0ncEpT's Avatar
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It is a 2.75 ID which allows it to mate up to the stock catback and many other catbacks
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Old May 16, 2011 | 09:03 AM
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I just got a used Magnaflow catback, and the I-pipe had a little bit of a step-down which was the perfect size for my TSP off-road Y...
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Old May 16, 2011 | 11:20 AM
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The connection size is about 2.75". Just about every catback necks down to that size so everyone's exhaust will bolt up to eachother.

Jon
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