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05-26-2010, 09:09 PM
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CC Member
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Join Date: May 2010
Location: Birmingham,
AL
Cobra Make, Engine: Kirkham 289 FIA, 363 Stroker
Posts: 751
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Not Ranked
How loud are Kirkham Sidepipes?
Im curious how loud the Kirkham sidepipes are? Do they use a standard glasspack, or do they use an actual muffler? I lost a good bit of hearing in my left ear thanks to my last replica, and that was after modifying the sidepipes and shutting them up a few decibels.
Is there a place where i can purchase just the 427fe headers tubes that attach to the pipes? If they use a muffler, does anybody know what brand and if i can buy that muffler? I have the pipes, so i might just cut them up and make something custom if i can get the mufflers and header tubes.
Thanks
Ironman Cobra
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Advertising
05-26-2010, 11:25 PM
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CC Member
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Join Date: Dec 2009
Location: San Carlos, Carmel,
CA
Cobra Make, Engine: Kirkham #625 427S/C, 468 ci Al block, 615 HP
Posts: 100
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Not Ranked
I don't think the Kirkham pipes are overly loud, and they have a great tone. That said, I have always worn earplugs when Cobra-ing.
Mark
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05-27-2010, 12:03 AM
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Senior Club Cobra Member
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Join Date: Jul 2002
Cobra Make, Engine:
Posts: 15,712
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Not Ranked
I ALWAYS wear ear plugs in the Cobra. My glove box is filled with them in plastic packages, I even have a box. I also keep a couple of pairs on my bikes AND my Miata convertible!
With the top down on the Miata the wind noise will still damage your hearing. Same with the bikes at speeds over 35 mph.
Left ear, the one next to the side pipe? All but gone... I'm trying to save what I got left.
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05-27-2010, 08:23 AM
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CC Member
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Join Date: May 2010
Location: Birmingham,
AL
Cobra Make, Engine: Kirkham 289 FIA, 363 Stroker
Posts: 751
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Not Ranked
Has anybody used the long CC inserts? These are supposed to give the sidepipes a nice deep mellow sound and they can make them in custom lengths.
http://www.carchemistry.com/shop/ind...t_detail&p=149
Last edited by RestoCreations; 05-27-2010 at 08:29 AM..
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05-27-2010, 09:16 AM
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CC Member
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Join Date: Jan 2002
Location: Santa Rosa Valley,
CA
Cobra Make, Engine: Kirkham KMP500 LeMans- Roush 451 Shelby block; KMP Flip-top with cammer: KMP 289 Bronze under construction.
Posts: 285
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Not Ranked
My pipes were way too loud for my wife and neighbors. I had them modifies at Coast Fabrication in So. Cal. with great results. I'm running a Roush 451ci. Even with the upgrade, ear plugs or head phones are a must if you want to hear in later years.
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05-27-2010, 02:28 PM
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CC Member
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Join Date: Nov 2006
Cobra Make, Engine:
Posts: 166
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Not Ranked
The stainless mufflers are fairly loud, but not more so than any other. They have a repackable muffler that is a strait through design. I guess you could call it a glass pack but they are much nicer than that. You could open up that canister and do some modification like an auger or something similar.
It is all pretty futile, because if the exhaust does not make you go def, the wind noise will. Ear plugs are a great idea.
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05-27-2010, 03:46 PM
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CC Member
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Join Date: Apr 2006
Cobra Make, Engine: Superformance
Posts: 351
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Not Ranked
Quote:
Originally Posted by RestoCreations
I lost a good bit of hearing in my left ear thanks to my last replicaThanks
Ironman Cobra
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Have you considered setting the car up as a roadster? Exhaust out the back of the car. Car sounds great, but my ears still work fine. Even after a lifetime of loud rock and roll music. No need for earplugs.
Jack
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05-28-2010, 11:02 AM
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Super Moderator
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Join Date: May 2001
Location: Fresno,
CA
Cobra Make, Engine: KMP 184/482ci Shelby
Posts: 14,445
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Not Ranked
My Kirkham pipes (circa 2003) are louder than hell, but I don't hear anyone complaining about them.
__________________
Jamo
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05-28-2010, 11:30 AM
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CC Member
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Join Date: Jan 2003
Location: Atlanta,
GA
Cobra Make, Engine: CAV GT40 with 331 KC
Posts: 2,187
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Not Ranked
Heh heh....
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05-28-2010, 11:49 AM
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Senior Club Cobra Member
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Join Date: Feb 2007
Cobra Make, Engine: KMP 539, a Ton of Aluminum
Posts: 9,591
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Not Ranked
FWIW, I never got to here my original pipes from Kirkham. The shop that installed the engine and tranny in my car recommended they be replaced with another (quieter, but allegedly less restrictive) muffler, thus I never heard my original Kirkham pipes.
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05-28-2010, 12:44 PM
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CC Member
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Join Date: May 2010
Location: Birmingham,
AL
Cobra Make, Engine: Kirkham 289 FIA, 363 Stroker
Posts: 751
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Not Ranked
Quote:
Originally Posted by Jamo
My Kirkham pipes (circa 2003) are louder than hell, but I don't hear anyone complaining about them.
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LOL! I took a hundred mile trip in my last replica when it had the standard glasspack mufflers and I could not hear for two days afterwards. Just walked around like my father, who has been a drummer his whole life, saying what to everyone. It became very annoying to those i was trying to talk to and myself.
I've tried the classic chambered mufflers before, but they sounded exactly the same to me. I tested the pipes before and after with a radioshack decibel meter and they were the same at all rpms except idle. Slightly quieter at idle to 1200rpm, but the classic chambered pipes were a little longer-2 inches if i remember correctly. Not enough to make a difference.
I think i will give the Car Chemistry inserts a go. Perhaps i will weld in something in the turndowns as well. I figure with a 482 FE aluminum stroker, i can stand to lose a few horses to make the exhaust a little quieter.
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05-28-2010, 01:31 PM
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CC Member
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Join Date: Oct 2006
Location: West Bend,WI,
wi
Cobra Make, Engine: Holliday Motorsport/396 GM / 4 speed / Jag rearend
Posts: 272
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Not Ranked
I'm with you JAMO! Mine work great because i can't hear my wife yelling stop as i'm leaving the driveway so she can ask me to pick something up while i'm out GOOFING OFF in my little car. LOUD PIPES SAVES LIVES! not hearing.
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05-28-2010, 01:35 PM
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CC Member
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Join Date: May 2008
Location: San Jose CA,
CA
Cobra Make, Engine: SPF_R_/BRG/FRBoss302/327CI/FordEFI/Under_Car_Exh/
Posts: 2,523
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Not Ranked
(insert Undercar rant here )
__________________
Steve SPF 2734 MK3 / Brock Coupe #54- panavia.com
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05-28-2010, 02:32 PM
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Senior Club Cobra Member
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Join Date: Feb 2007
Cobra Make, Engine: KMP 539, a Ton of Aluminum
Posts: 9,591
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Not Ranked
Quote:
Originally Posted by PANAVIA
(insert Undercar rant here )
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It's a Cobra not a Prius.
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05-28-2010, 03:19 PM
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CC Member
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Join Date: May 2010
Location: Birmingham,
AL
Cobra Make, Engine: Kirkham 289 FIA, 363 Stroker
Posts: 751
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Not Ranked
I have sidepipes on a midyear vette and love the sound. However, it is a far different than the side exhaust on a cobra replica, original, or continuation series. Anyway, I want to keep the car with side exhaust. I am not really trying to alter the car from its image in the movie. If i was, the first thing to go would be the meat balls and pipes would be silver ceramic coated.
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05-29-2010, 12:47 PM
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CC Member
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Join Date: May 2002
Location: Mission Viejo,
CA
Cobra Make, Engine: Kirkham, 427 side oiler
Posts: 225
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Not Ranked
My Kirkham is loud, but not crazy loud. I take short runs without ear protection, but these babies will probably damage your hearing in the long run. The wind buffeting can also be uncomfortable. I wear ear plugs as much as possible. It makes for a more comfortable overall driving experience.
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06-03-2010, 09:07 AM
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CC Member
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Join Date: May 2009
Cobra Make, Engine:
Posts: 135
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Not Ranked
The stainless has a deeper nicer sound than the steel ones. They Stainless are quieter as well and yet very loud. I wear ear plugs. Neighbors don't like it. I's say most Harleys are louder, but not as deep. They sound great.
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