X pipe crossover installed, what a difference
Melting Slicks
Joined: Feb 2004
Posts: 2,039
Likes: 105
From: State of Confusion!!!
2018 C2 of Year Winner
That actually looks like the x-pipe in my Magnaflow system. I bought it a couple months ago, but have yet to install it. When the 5 speed goes in, the pipes will go on. I figure it will be ready to roll after tax season!!! 
I look foward to hearing a new clip!!!
I look foward to hearing a new clip!!!
Thread Starter
Safety Car
Joined: Nov 2005
Posts: 3,961
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From: Lompoc, CA. Santa Barbara County
Cruising
Joined: Feb 2007
Posts: 13
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I have the same crossmember from bowties and was thinking about curving the H-pipe under the tranny mount to keep it within 18".
Race Director
Joined: May 2003
Posts: 10,956
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From: California
Is anyone worried about the heat generated near the rear-end? heat in the differential oil along with natural friction heat being to high? or the extra heat near the composite spring?
Also you plate says 1979, but your rear looks like an 80+ did you do this change? if so how difficult was it? and how much weight did you save?
Also you plate says 1979, but your rear looks like an 80+ did you do this change? if so how difficult was it? and how much weight did you save?
Last edited by pauldana; Mar 22, 2009 at 01:37 PM.
Thread Starter
Safety Car
Joined: Nov 2005
Posts: 3,961
Likes: 573
From: Lompoc, CA. Santa Barbara County
Is anyone worried about the heat generated near the rear-end? heat in the differential oil along with natural friction heat being to high? or the extra heat near the composite spring?
Also you plate says 1979, but your rear looks like an 80+ did you do this change? if so how difficult was it? and how much weight did you save?
Also you plate says 1979, but your rear looks like an 80+ did you do this change? if so how difficult was it? and how much weight did you save?
The X-pipe doesn't generate any more heat than the non-X pipes.
Last edited by Bee Jay; Mar 27, 2009 at 12:48 AM.
Race Director
Joined: May 2003
Posts: 10,956
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From: California
Check out my batwing mod here:http://forums.corvetteforum.com/c3-t...g-install.html
The X-pipe doesn't generate any more heat than the non-X pipes.
The X-pipe doesn't generate any more heat than the non-X pipes.
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Thread Starter
Safety Car
Joined: Nov 2005
Posts: 3,961
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From: Lompoc, CA. Santa Barbara County
Bee Jay
http://forums.corvetteforum.com/c3-t...g-install.html
Last edited by Bee Jay; Mar 27, 2009 at 01:14 AM.
Team Owner
Joined: Apr 1999
Posts: 21,953
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From: Reno Nevada
2024 C3 of the Year Finalist- Modified
Yep, Didn't expect much from the X pipe since I already had an H pipe, but I was surprised. Maybe someone can explain why. I would advise anyone with an H pipe and their system is still too loud, try an X pipe before you toss the mufflers. I drove the car to work this morning and I had a conversation with the wife. Tonight I'll try the stereo.
Bee Jay
Bee Jay
But I'm one to talk because my three inch system with 3 1/2 in and out mufflers sets off car alarms driving slow in parking lots
Thread Starter
Safety Car
Joined: Nov 2005
Posts: 3,961
Likes: 573
From: Lompoc, CA. Santa Barbara County
I finally have video of the exhaust sound with X pipe. So here you go. Let me know what you think.
Bee Jay
Before X-pipe:
After X-pipe:
Bee Jay
Before X-pipe:
After X-pipe:
Last edited by Bee Jay; Apr 2, 2011 at 09:55 PM.
Le Mans Master
Joined: Apr 2001
Posts: 5,000
Likes: 1
From: Minneapolis, Mn USA
Unless you have a vid of the drone in the car, its hard to tell. Sounds great to me in both vids actually.
The second vid, with X-pipe, sounds better on the vid, only because the first vid seemed to be clipping the sound (pegged out your mic).
Doesnt sound like you lost anything on acceleration, but if the drone is gone, sounds like success to me!!
The second vid, with X-pipe, sounds better on the vid, only because the first vid seemed to be clipping the sound (pegged out your mic).
Doesnt sound like you lost anything on acceleration, but if the drone is gone, sounds like success to me!!
Thread Starter
Safety Car
Joined: Nov 2005
Posts: 3,961
Likes: 573
From: Lompoc, CA. Santa Barbara County
Unless you have a vid of the drone in the car, its hard to tell. Sounds great to me in both vids actually.
The second vid, with X-pipe, sounds better on the vid, only because the first vid seemed to be clipping the sound (pegged out your mic).
Doesnt sound like you lost anything on acceleration, but if the drone is gone, sounds like success to me!!
The second vid, with X-pipe, sounds better on the vid, only because the first vid seemed to be clipping the sound (pegged out your mic).
Doesnt sound like you lost anything on acceleration, but if the drone is gone, sounds like success to me!!
Drifting
Joined: Jul 2002
Posts: 1,944
Likes: 20
From: The only Corvettes in Highett Victoria
Project for Bee Jay
Bee Jay,
You know what you have to do now. Seeing that you already have an H pipe, you must complete the following experiment for the benefit of all of us here.
STEP #1: Cut the H pipe and fit in an operable exhaust heat riser valve and make sure that there are no leaks.
STEP #2: Get a long piece of vacuum hose and connect one end to a good vacuum source on the engine, feed it into the passenger's compartment, and then loop it and run the other end down to the heat riser valve in the H pipe.
STEP #3: Then, with a passenger holding the hose and a pair of pliers, go for a drive and have the passenger squeeze the hose closed at various engine and road speeds, thereby opening and closing the valve, and therefore, the H pipe. Record the different sounds from both inside and out.
STEP #4: Report your findings here so that we all may learn.
Be prepared to become famous! Let's see - Einstein, Von Braun, Bee Jay! I can see it already.
Regards from Down Under
aussiejohn
11 weeks to go
You know what you have to do now. Seeing that you already have an H pipe, you must complete the following experiment for the benefit of all of us here.
STEP #1: Cut the H pipe and fit in an operable exhaust heat riser valve and make sure that there are no leaks.
STEP #2: Get a long piece of vacuum hose and connect one end to a good vacuum source on the engine, feed it into the passenger's compartment, and then loop it and run the other end down to the heat riser valve in the H pipe.
STEP #3: Then, with a passenger holding the hose and a pair of pliers, go for a drive and have the passenger squeeze the hose closed at various engine and road speeds, thereby opening and closing the valve, and therefore, the H pipe. Record the different sounds from both inside and out.
STEP #4: Report your findings here so that we all may learn.
Be prepared to become famous! Let's see - Einstein, Von Braun, Bee Jay! I can see it already.
Regards from Down Under
aussiejohn
11 weeks to go
Drifting
Joined: Apr 2006
Posts: 1,911
Likes: 2
From: gold coast queensland
glad your X-pipe made a difference. i have never heard anyone yet say they were happy with a H-pipe over a X-pipe. i think yours sounds heaps better now .love the video below too..should be more like them on here.
Last edited by gingerbreadman1977; May 19, 2009 at 01:52 AM.
Thread Starter
Safety Car
Joined: Nov 2005
Posts: 3,961
Likes: 573
From: Lompoc, CA. Santa Barbara County
Bee Jay,
You know what you have to do now. Seeing that you already have an H pipe, you must complete the following experiment for the benefit of all of us here.
STEP #1: Cut the H pipe and fit in an operable exhaust heat riser valve and make sure that there are no leaks.
STEP #2: Get a long piece of vacuum hose and connect one end to a good vacuum source on the engine, feed it into the passenger's compartment, and then loop it and run the other end down to the heat riser valve in the H pipe.
STEP #3: Then, with a passenger holding the hose and a pair of pliers, go for a drive and have the passenger squeeze the hose closed at various engine and road speeds, thereby opening and closing the valve, and therefore, the H pipe. Record the different sounds from both inside and out.
STEP #4: Report your findings here so that we all may learn.
Be prepared to become famous! Let's see - Einstein, Von Braun, Bee Jay! I can see it already.
Regards from Down Under
aussiejohn
11 weeks to go
You know what you have to do now. Seeing that you already have an H pipe, you must complete the following experiment for the benefit of all of us here.
STEP #1: Cut the H pipe and fit in an operable exhaust heat riser valve and make sure that there are no leaks.
STEP #2: Get a long piece of vacuum hose and connect one end to a good vacuum source on the engine, feed it into the passenger's compartment, and then loop it and run the other end down to the heat riser valve in the H pipe.
STEP #3: Then, with a passenger holding the hose and a pair of pliers, go for a drive and have the passenger squeeze the hose closed at various engine and road speeds, thereby opening and closing the valve, and therefore, the H pipe. Record the different sounds from both inside and out.
STEP #4: Report your findings here so that we all may learn.
Be prepared to become famous! Let's see - Einstein, Von Braun, Bee Jay! I can see it already.
Regards from Down Under
aussiejohn
11 weeks to go
Here is another video.
Bee Jay
Last edited by Bee Jay; Apr 2, 2011 at 09:56 PM.
Instructor
Joined: May 2007
Posts: 130
Likes: 0
From: Houston TX
I installed an H pipe exactly 18" behind the header collectors, between the transmission mt and crossover. Used 2" pipe connecting to 2.5" duals. The total installation with Magnaflows was a performance improvement but I still have resonance at 14-1500rpms. Too small an H pipe?? Couldn't fit a larger diam in there.
Thread Starter
Safety Car
Joined: Nov 2005
Posts: 3,961
Likes: 573
From: Lompoc, CA. Santa Barbara County
I installed an H pipe exactly 18" behind the header collectors, between the transmission mt and crossover. Used 2" pipe connecting to 2.5" duals. The total installation with Magnaflows was a performance improvement but I still have resonance at 14-1500rpms. Too small an H pipe?? Couldn't fit a larger diam in there.
Bee Jay
Instructor
Joined: Aug 2004
Posts: 174
Likes: 0
From: Roskilde
x-pipe custom exhaust
here's some photos of x-pipe exhausts we have done lately:
3" bigblock
2 1/2" smallblock
3" bigblock
2 1/2" smallblock
Last edited by davidarborg; Feb 24, 2011 at 04:58 AM. Reason: different location pictures