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Old 02-24-2015, 11:50 AM   #1
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Exhaust Piping size

Is the GT exhaust piping the same size as the 3.7( "2.5")


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Old 02-24-2015, 11:58 AM   #2
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GT is 2.75. If you are planning to add GT piping to your V6, you would need to probably weld it.
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Old 02-24-2015, 11:59 AM   #3
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Nope 2.75in
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Old 02-24-2015, 12:02 PM   #4
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Quote:
Originally Posted by Kevin.Cook View Post
GT is 2.75. If you are planning to add GT piping to your V6, you would need to probably weld it.

Yea I'm planning on welding it. I jst want to know if it will weld on to it right? My friend is selling me his cat deletes and I want to install them on mine


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Old 02-24-2015, 12:11 PM   #5
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Are you running a tune? If so, make sure to work with your tuning company so they can datalog with you after the install. This way, they can adjust your tune if needed to make sure you don't lose any back pressure.

Not sure if .25 inches will cause a huge discrepancy but I always play it safe. Especially if you will be deleting the cats.
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Old 02-24-2015, 12:15 PM   #6
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+1 on what Kevin said. I saw another guy talk about this and he said when he did it it fit pretty snug insider and welded it in. He said he couldn't tell from driving it any power loss or anything but play it safe like Kevin said.
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Old 02-24-2015, 12:27 PM   #7
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Quote:
Originally Posted by Kevin.Cook View Post
Are you running a tune? If so, make sure to work with your tuning company so they can datalog with you after the install. This way, they can adjust your tune if needed to make sure you don't lose any back pressure.

Not sure if .25 inches will cause a huge discrepancy but I always play it safe. Especially if you will be deleting the cats.

Thanks for the heads up. I'll let my tuning company know what i did so everything goes good


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Old 02-24-2015, 01:08 PM   #8
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A GT cat delete will require a lot of chopping and welding, it would make just as much sense to have a shop fab one up. The H pipe and back and be made to fit the V6 with only one cut and one weld on each side, the cat delete will require twice that.
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Old 02-24-2015, 02:16 PM   #9
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Originally Posted by LiveWire003 View Post
A GT cat delete will require a lot of chopping and welding, it would make just as much sense to have a shop fab one up. The H pipe and back and be made to fit the V6 with only one cut and one weld on each side, the cat delete will require twice that.

I have a hookup with the muffler shop i go to. He gives me the price before doing the job So watever he has to do he'll do it for a firm price.


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Old 02-24-2015, 02:29 PM   #10
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That's all well and good, I'm just saying this is sort of an irreversible mod, since you'll have to cut lots of pipe to get it to work. Just replacing the cats/resonators with straight pipe will get you an identical result and require less work.

It also sounds like crap but to each his own.
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Old 02-24-2015, 06:06 PM   #11
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Quote:
Originally Posted by LiveWire003 View Post
That's all well and good, I'm just saying this is sort of an irreversible mod, since you'll have to cut lots of pipe to get it to work. Just replacing the cats/resonators with straight pipe will get you an identical result and require less work.

It also sounds like crap but to each his own.

Well isn't this straight piping? I never really understood that. What is straight piping exactly?


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Old 02-24-2015, 06:17 PM   #12
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I thought straight piping is running your exhaust with no cats or mufflers. Which is why you get that really raspy sound.
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Old 02-24-2015, 06:19 PM   #13
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Quote:
Originally Posted by Tek1836 View Post
I thought straight piping is running your exhaust with no cats or mufflers. Which is why you get that really raspy sound.

Same thing I thought


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Old 02-24-2015, 08:32 PM   #14
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Straight Pipe

Straight Pipe vs Muffler
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Old 02-24-2015, 08:35 PM   #15
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I meant it in the most literal sense... straight pipe... in place of cat...
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Old 02-24-2015, 08:39 PM   #16
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Here is what you need....
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Old 02-24-2015, 08:46 PM   #17
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^ amurikin muscle right hur... lol
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Old 02-24-2015, 09:02 PM   #18
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Quote:
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Here is what you need....
It will be one of a kind. No one could or would want to copy you haha
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