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2.5 vs 3" exhaust what do you guys run?

Old 01-19-2015, 07:40 PM
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Vince98
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Default 2.5 vs 3" exhaust what do you guys run?

What size exhaust do most of you run with forced induction and what kind of power are you making?

I was dead set on going with a xs power 3" system but they are currently out of stock. I don't see a lot of options for 3" exhaust on the c5 that's why I'm curious to know what you all are running. I like the sound of the B&B bullets, corsa extreme, xs power I want the best free flowing exhaust I can put on my car.

Sorry for the newb question. I'll be running a t trim looking to make 600whp. Thanks Vince
Old 01-19-2015, 07:54 PM
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blown81bu
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.3" midpipe..GM TI unmodded exaust..

Last edited by blown81bu; 01-19-2015 at 08:08 PM.
Old 01-19-2015, 08:25 PM
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2003VETT
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stock ti is fine here...
Old 01-19-2015, 08:48 PM
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4DRUSH
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Originally Posted by blown81bu
.3" midpipe..GM TI unmodded exaust..
Good job editing out hp/tq numbers (almost got another certificate)
Old 01-19-2015, 09:16 PM
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Originally Posted by 4DRUSH
Good job editing out hp/tq numbers (almost got another certificate)
lmao
Old 01-19-2015, 10:22 PM
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a/c man
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Originally Posted by blown81bu
.3" midpipe..GM TI unmodded exaust..
same here. I was told the 3'' cat back necks down to 2.5 inside the mufflers
Old 01-19-2015, 11:25 PM
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a/c man
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Originally Posted by 4DRUSH
Good job editing out hp/tq numbers (almost got another certificate)
907.2 rwhp!!
Old 01-20-2015, 12:15 AM
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robert miller
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Originally Posted by Vince98
What size exhaust do most of you run with forced induction and what kind of power are you making?

I was dead set on going with a xs power 3" system but they are currently out of stock. I don't see a lot of options for 3" exhaust on the c5 that's why I'm curious to know what you all are running. I like the sound of the B&B bullets, corsa extreme, xs power I want the best free flowing exhaust I can put on my car.

Sorry for the newb question. I'll be running a t trim looking to make 600whp. Thanks Vince
Got with 3 inch mid pipe and the bullets you will gain back about the diff with the mufflers that are on the other. We all know the pipe over the rear on these c5 are crap.

If you dont car to cut the back pan out of your car look at the guys post that did that and put the c6 system on his car.
Old 01-20-2015, 12:25 AM
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4DRUSH
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Tony ^
Old 01-20-2015, 12:33 AM
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I will be running 1 7/8 American racing headers and a 3" x pipe no cats. I have a flow master exhaust in the car now but don't like the sound of it. I may give the B&B bullets a try I see a lot of guys recommend them and they seem fairly loud.

Not looking to cut the car up lol it hasn't got that serious yet.
Old 01-20-2015, 12:53 AM
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a/c man
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Originally Posted by Vince98
I will be running 1 7/8 American racing headers and a 3" x pipe no cats. I have a flow master exhaust in the car now but don't like the sound of it. I may give the B&B bullets a try I see a lot of guys recommend them and they seem fairly loud.

Not looking to cut the car up lol it hasn't got that serious yet.
The exhaust will get louder with a blower
Old 01-20-2015, 01:42 AM
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I have 1 3/4" lg superpros, no cats, 3" midpipe, and corsa xtremes... the xtremes are 2.5" but are one of the least restrictive systems I could find that are tolerable sound wise... if you look at the way they are designed the pipe doesn't even flow through the muffler
Old 01-20-2015, 01:47 AM
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I have 1 7/8 LT headers with 2 1/2 inch catless mid pipe and factory titanium exhaust. I want to step up to 2" headers with 3" mid pipe and either LG or XS Power 3" axle back system.

The current exhaust setup has netted darn near 1000 whp. My reason for wanting to upgrade exhaust is to try to climb over that 1000 whp mark without changing the cam. I'm also going to add an electric waterpump.
Old 01-21-2015, 10:42 AM
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Modified UPP 2.5" downpipes to Texas Speed 3" off road x-pipe. ZO6 ti catback and 3" cutouts on x-pipe made 832hp/915tq to the wheels on my old junkyard engine setup and was QUIET.

My new setup is 3" c6 zo6 x-pipe to 08 npp muflers
Old 01-21-2015, 07:33 PM
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LedfootLarry
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Originally Posted by JoeyG
Modified UPP 2.5" downpipes to Texas Speed 3" off road x-pipe. ZO6 ti catback and 3" cutouts on x-pipe made 832hp/915tq to the wheels on my old junkyard engine setup and was QUIET.

My new setup is 3" c6 zo6 x-pipe to 08 npp muflers
Got pics Joey ?
I have C6 Z06 X pipe and C6 Z06
B&B fusions
Old 01-21-2015, 08:36 PM
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NVTHIS
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I am running Kooks 1 3/4" longtubes to 3" mids going into SLP Loudmouths.

Last edited by NVTHIS; 01-21-2015 at 08:38 PM.
Old 01-21-2015, 10:22 PM
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Originally Posted by LedfootLarry
Got pics Joey ?
I have C6 Z06 X pipe and C6 Z06
B&B fusions
Its all over the garage now Larry. Im im the middle of the 6060 swap. I should have rephrased that to my new setup is going to be.

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To 2.5 vs 3" exhaust what do you guys run?

Old 01-22-2015, 12:49 PM
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Smoove
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3" from my T4 turbochargers back. Custom 3" mufflers. No X currently. looking for 0ver 3 digits.
Old 01-23-2015, 09:23 PM
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MotleyDrew
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I run american racing 2" primariy headers to full true 3 inch exhaust using lg big 3 exhaust with 3 inch mufflers ......

Last edited by MotleyDrew; 01-23-2015 at 09:26 PM.
Old 04-24-2016, 06:05 PM
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knightz06
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Originally Posted by Vince98
What size exhaust do most of you run with forced induction and what kind of power are you making?

I was dead set on going with a xs power 3" system but they are currently out of stock. I don't see a lot of options for 3" exhaust on the c5 that's why I'm curious to know what you all are running. I like the sound of the B&B bullets, corsa extreme, xs power I want the best free flowing exhaust I can put on my car.

Sorry for the newb question. I'll be running a t trim looking to make 600whp. Thanks Vince
What system did you go with. I'm purchasing a 2 in primary 3 inch mid and looking at the xs power 2.5

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