Cracked Flex Pipe in my DC Header
Thread Starter
Polar Chicken
Joined: Oct 2004
Posts: 940
Likes: 1
From: Phoenix
Cracked Flex Pipe in my DC Header
So I hit a large rock on the freeway and managed to put about a finger size hole in my flex pipe. Anyone have a lower half of a DC header, think it is worth cutting off and replacing or just ordering a new one from DC?
JTso, I dont want my old one back.
JTso, I dont want my old one back.
Rep'n Taxbrain.com
Joined: Aug 2004
Posts: 7,075
Likes: 3
From: N. Cali-forn-i-a
The flex pipe wouldn't be too expensive to replace. And if you replace it, if you had a hiss, it will be gone. I'm guessing about $50 total. Just order a new flex pipe online and then take it to a muffler shop. JTso has a thread that shows a link about where to buy a new double braided flex pipe.
Originally Posted by JTso
I'd probably use a wire brush to clean the area around the pipe before welding. I didn't have any problems when welding the flex pipe to the flange to prevent it from coming apart. The inside is also ceramic coated.
I got the flex pipe from Performance Curve. They also sell on ebay but you pay more for shipping. The pipe I got is this one in 2.25" x 6" . The flex pipe itself is 6" plus 2" extension on each side = 10" OAL. I don't think you want to go larger than 2.25" ID for NA application.
The inside of the flex pipe with the inner mesh is 2.25" ID. However, the extension inlet/outlet ID is expanded to slightly over 2.5". But the pipe that I used for collector is 2.5" OD with a 2.25" ID (thick exhaust pipe). Therefore, the entire flow path remains 2.25" and the pipe slips right on to the extension.
I also found another place that carries the similar stainless quality flex pipes but with even more options. http://www.epiflex.com/epi_flex.html
They can put together any combination of length and size of flex pipe you want. I got a quote for $50 in custom length with flex pipe. Call the listed number and speak to Rich.
If the custom A-pipe actually provides gain, then I might consider coating the header assembly. This is the same place where I coated my intake manifold. But I'd probably coat the header with a different coating.
http://www.performancecoatings.com/benefitdata.htm
I got the flex pipe from Performance Curve. They also sell on ebay but you pay more for shipping. The pipe I got is this one in 2.25" x 6" . The flex pipe itself is 6" plus 2" extension on each side = 10" OAL. I don't think you want to go larger than 2.25" ID for NA application.
The inside of the flex pipe with the inner mesh is 2.25" ID. However, the extension inlet/outlet ID is expanded to slightly over 2.5". But the pipe that I used for collector is 2.5" OD with a 2.25" ID (thick exhaust pipe). Therefore, the entire flow path remains 2.25" and the pipe slips right on to the extension.
I also found another place that carries the similar stainless quality flex pipes but with even more options. http://www.epiflex.com/epi_flex.html
They can put together any combination of length and size of flex pipe you want. I got a quote for $50 in custom length with flex pipe. Call the listed number and speak to Rich.
If the custom A-pipe actually provides gain, then I might consider coating the header assembly. This is the same place where I coated my intake manifold. But I'd probably coat the header with a different coating.
http://www.performancecoatings.com/benefitdata.htm
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Three Wheelin'
Joined: Sep 2003
Posts: 1,471
Likes: 0
From: ALBUQUERQUE, NEW MEXICO
Damn, that's suck. You should get new one, maybe comptech or stainles stell header from Ebay. I am looking for upgrade header for my TSX next year but not sure which one is better. Good luck!
Suzuka Master
Joined: Jul 2003
Posts: 7,594
Likes: 4
From: Cincinnati, OH
Originally Posted by aaronng
I heard that the stainless steel DC header clone from China has pipes that don't line up with the exhaust ports.
Thread Starter
Polar Chicken
Joined: Oct 2004
Posts: 940
Likes: 1
From: Phoenix
Thanks HRJ, I will get this ordered up next week, and than cut off the old and replace with the new. I want to hear back from DC first, as if I pay $80 for a new pipe + install, I might as well see how much DC would want to replace
Thread Starter
Polar Chicken
Joined: Oct 2004
Posts: 940
Likes: 1
From: Phoenix
Just to be clear, I hit a large rock at 70mph on the freeway, thus it would not have mattered what brand of header I have. I am shocked it did not just rip the entire flex pipe/Cat off my car.
Senior Moderator
Joined: Jan 2006
Posts: 4,036
Likes: 1
From: ffx.va.us
Originally Posted by aaronng
I heard that the stainless steel DC header clone from China has pipes that don't line up with the exhaust ports.
C'mon, man! Row yer own.
Joined: Jun 2005
Posts: 1,210
Likes: 0
From: WDMIA
Originally Posted by Zasker1
Thanks HRJ, I will get this ordered up next week, and than cut off the old and replace with the new. I want to hear back from DC first, as if I pay $80 for a new pipe + install, I might as well see how much DC would want to replace
Driver/Detailer
Joined: Oct 2003
Posts: 2,474
Likes: 2
From: Sydney
Originally Posted by Reach
I am running this header and this is not true. I can't speak for quality control and every single unit, but mine appeared well built and has been performing admirably since install. I'm actually impressed for such a cheap header. There are pics of it in one of my threads.
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