Exhaust cutouts
Thread Starter
Le Mans Master
Joined: Dec 2005
Posts: 6,999
Likes: 1,685
From: Southeast TX
Exhaust cutouts
I'm planning to add a set behind LG long tubes and in front of stock mufflers (no cats). Looking to do it one time. Hoping to find a quality kit that will last without a whole lot of upkeep. There's probably quite a few setups that will last a while before the hot gasses will take their toll. If it won't last, I don't want it. Anybody had them for more than a few years and a few thousand miles?
Also, I'm wanting a system that will allow partial opening. Might not want the complete open headers sound all the time. Being able to "tune" the sound would be a plus. Where did you mount the switch? Help appreciated.
Also, I'm wanting a system that will allow partial opening. Might not want the complete open headers sound all the time. Being able to "tune" the sound would be a plus. Where did you mount the switch? Help appreciated.
Last edited by old motorhead; Jul 17, 2008 at 10:23 PM.
Pro
Joined: May 2007
Posts: 585
Likes: 0
From: Ocean County NJ
I was all gung ho to do this and was talked out of it - told that it is loud but not a "quality" loud. Heard it in person and I kind of agree. Now I am looking to go NPP or B&B Fusion although I am sure that the shop that will be working on my car wants me to use GHL.
As I have Kooks LT with cats, Callaway Honker, 160 thermo and a tune, I am sure it will be plenty loud with any of the three exhaust but a bimodal will keep the noise down when I am alone and loud when I am with the wife (WHAT HONEY, SPEAK UP!!! I CAN'T HEAR YOU)
As I have Kooks LT with cats, Callaway Honker, 160 thermo and a tune, I am sure it will be plenty loud with any of the three exhaust but a bimodal will keep the noise down when I am alone and loud when I am with the wife (WHAT HONEY, SPEAK UP!!! I CAN'T HEAR YOU)
Last edited by 07 Z51; Jul 17, 2008 at 10:29 PM. Reason: big fat fingers hit the wrong damn key!!!
Thread Starter
Le Mans Master
Joined: Dec 2005
Posts: 6,999
Likes: 1,685
From: Southeast TX
I'm hoping "quality loud" can be adjusted. It would be nice to adjust the sound based on the situation. That's what I'm looking for. Quiet and subdued vs loud and totally ridiculously obnoxiously horrible on demand.
Burning Brakes
Joined: May 2006
Posts: 1,110
Likes: 16
From: stuart fl
cant say they last for years or anything since i only had mine for about a month
both revs were right about 3k RPM
http://s350.photobucket.com/albums/q...t=M2U00027.flv
both revs were right about 3k RPM
http://s350.photobucket.com/albums/q...t=M2U00027.flv
Tech Contributor
Joined: Jul 2002
Posts: 14,950
Likes: 264
From: St. Louis, MO
St. Jude Donor '08
Here' my write up and pics with vids and dyno sheets.
http://forums.corvetteforum.com/show....php?t=1628234
http://forums.corvetteforum.com/show....php?t=1628234
Thread Starter
Le Mans Master
Joined: Dec 2005
Posts: 6,999
Likes: 1,685
From: Southeast TX
Great Info! That's the direction I'm going. It's pricey, but still way less expensive than adding a set of loud mufflers that don't have the ability to shut up when you're not in the mood. Do you have any idea how many miles you have on your setup? Still no problems?
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Tech Contributor
Joined: Jul 2002
Posts: 14,950
Likes: 264
From: St. Louis, MO
St. Jude Donor '08
Great Info! That's the direction I'm going. It's pricey, but still way less expensive than adding a set of loud mufflers that don't have the ability to shut up when you're not in the mood. Do you have any idea how many miles you have on your setup? Still no problems?
I love the mod but based on my and my buddy's experience, you will have to eventually replace the motors. They live a hard life. But I LOVE this mod. It's a small price to pay.
Burning Brakes
Joined: Dec 2004
Posts: 882
Likes: 0
From: St. Augustine Fl
I had dual QTP cutouts on my Camaro, they ALWAYS leaked when they were closed (sounded like a BAD exhaust leak), the plastic covering on the motors melted and they fell off. I just had blockoff plates put in their place. Cool mod in theory, if I could get a guarantee they would work for more than 2 years I would do it again, but for all the trouble I went through it wasnt worth it.
Drifting
Joined: Oct 2006
Posts: 1,822
Likes: 144
From: Retired early,everyday is Saturday...Hocking Hills Ohio
I was all gung ho to do this and was talked out of it - told that it is loud but not a "quality" loud. Heard it in person and I kind of agree. Now I am looking to go NPP or B&B Fusion although I am sure that the shop that will be working on my car wants me to use GHL.
As I have Kooks LT with cats, Callaway Honker, 160 thermo and a tune, I am sure it will be plenty loud with any of the three exhaust but a bimodal will keep the noise down when I am alone and loud when I am with the wife (WHAT HONEY, SPEAK UP!!! I CAN'T HEAR YOU)
As I have Kooks LT with cats, Callaway Honker, 160 thermo and a tune, I am sure it will be plenty loud with any of the three exhaust but a bimodal will keep the noise down when I am alone and loud when I am with the wife (WHAT HONEY, SPEAK UP!!! I CAN'T HEAR YOU)
Thread Starter
Le Mans Master
Joined: Dec 2005
Posts: 6,999
Likes: 1,685
From: Southeast TX
I had dual QTP cutouts on my Camaro, they ALWAYS leaked when they were closed (sounded like a BAD exhaust leak), the plastic covering on the motors melted and they fell off. I just had blockoff plates put in their place. Cool mod in theory, if I could get a guarantee they would work for more than 2 years I would do it again, but for all the trouble I went through it wasnt worth it.
Speedy
Joined: Mar 2007
Posts: 6,110
Likes: 931
From: Tn
2024 C8 of the Year Finalist - Modified
i did them too,cost about 500 in parts and i fabbed/ installed for about 20 hours, very loud when open, i and everyone whos heard it loves it, sounds like nascar. when closed its quiet like you shut the engine off, i have a slight rattle but not a leak because i had to flip on of the motors 180* in order to fit like it is and didnt tighten it enough, will fix during winter (its not very noticeable so no need to tear it apart yet)
my install/ fabrication process:
http://forums.corvetteforum.com/show....php?t=1974877
demo:
http://www.youtube.com/watch?v=xLkbfvARm50
driving:
http://www.youtube.com/watch?v=vkW-A6ffEU4
pm me questions, i highly recommend over npp if you want max sound/ performance
my install/ fabrication process:
http://forums.corvetteforum.com/show....php?t=1974877
demo:
http://www.youtube.com/watch?v=xLkbfvARm50
driving:
http://www.youtube.com/watch?v=vkW-A6ffEU4
pm me questions, i highly recommend over npp if you want max sound/ performance