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LT, ORY into stock catback HP question

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LT, ORY into stock catback HP question

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Old

Jan 23, 2014 | 04:38 PM

#1

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Launching!

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From: Wisconsin

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LT, ORY into stock catback HP question

This summer I am going to be installing my 1.75 headers into a ORY. However due to my wifes daily driver needing some repairs the stock catback is going to stay. The original owner replaced the stock muffler with a magnaflow but the piping size is still the stock size (2.5).

How much HP is that likely to cost me vs having a 3" magnaflow catback on the back? Is it something I would even feel? My mods would be the headers, ory, ls6 intake, Ported tb, tb coolant bypass, air/egr deleted, frost tune

Old

Jan 23, 2014 | 06:46 PM

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The stock size is 2.75" and I don't think at your power level you will realize it. The muffler is the most restrictive part of the stock system.

Old

Jan 23, 2014 | 06:50 PM

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I doubt you would be able to tell a difference. You will gain most of your power from the headers/ory and the tune.

Old

Jan 23, 2014 | 06:54 PM

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Launching!

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Thanks guys. That's what I thought but I wanted to make sure.

Old

Jan 23, 2014 | 07:55 PM

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But it will sound way better than it does now

Old

Jan 23, 2014 | 08:29 PM

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Since it's a magna flow it can't be too bad

Chug! Chug! Chug!

Old

Jan 25, 2014 | 02:21 AM

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Just get a cutout if you're concerned

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Old

Jan 25, 2014 | 06:06 AM

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Look at the muffler inside the 3" inlet. It necks down to roughly 2.5" right before it makes the first 90deg bend inside the muffler case. Mine does anyways.

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Old

Jan 25, 2014 | 10:03 AM

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A stock catback with a cut out will make up the difference.

Old

Jan 25, 2014 | 10:46 AM

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Quote:

Originally Posted by MikeWS6

A stock catback with a cut out will make up the difference.

He is running a magnaflow muffler with stock piping for the cat back. I dont think this will hurt him in any way at his power level.

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