Need an opinion on headers, OEM vs Aftermarket
10-Mar-2011, 01:34 PM
#1
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Join Date: Jul 2010
Posts: 46
Need an opinion on headers, OEM vs Aftermarket
Hey TCC,
I'm replacing the stock header on my B16 due to damage of Toronto roads have done to it lol
So I've been looking around for cheap alternatives for now due to money is tight right now and I found a USDM 4-2-1 ITR header and a DC sports header.
Would you recommend getting the ITR header or DC sports header? Both are under $100 but the DC header costs more.
Need some opinions please!
Thanks!
I'm replacing the stock header on my B16 due to damage of Toronto roads have done to it lol
So I've been looking around for cheap alternatives for now due to money is tight right now and I found a USDM 4-2-1 ITR header and a DC sports header.
Would you recommend getting the ITR header or DC sports header? Both are under $100 but the DC header costs more.
Need some opinions please!
Thanks!
10-Mar-2011, 02:19 PM
#2
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Join Date: Sep 2007
Location: Where my car is.
Posts: 5,460
I have a JDM ITR 4-1 header on my b16 and love it. Only paid $100 for it too. 
Check the collector diameter. Go with which ever has the larger. The ITR header should have a collector diameter of 2-3/8" or 2-1/2". That is the main bottle-neck on the stock b16 header, where it shrinks down to a tiny 2" or so...
If you also replace the full exhaust system with larger diameter piping (2-3/8 ro 2-1/2) you'll notice a slight drop in torque below 3000, but a nice gain from about 4500 on up to redline at 8200.
Check the collector diameter. Go with which ever has the larger. The ITR header should have a collector diameter of 2-3/8" or 2-1/2". That is the main bottle-neck on the stock b16 header, where it shrinks down to a tiny 2" or so...
If you also replace the full exhaust system with larger diameter piping (2-3/8 ro 2-1/2) you'll notice a slight drop in torque below 3000, but a nice gain from about 4500 on up to redline at 8200.
16-Mar-2011, 01:49 PM
#7
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Join Date: Jan 2009
Location: Pick. er. ing.
Posts: 1,870
I have a JDM ITR 4-1 header on my b16 and love it. Only paid $100 for it too.
Check the collector diameter. Go with which ever has the larger. The ITR header should have a collector diameter of 2-3/8" or 2-1/2". That is the main bottle-neck on the stock b16 header, where it shrinks down to a tiny 2" or so...
If you also replace the full exhaust system with larger diameter piping (2-3/8 ro 2-1/2) you'll notice a slight drop in torque below 3000, but a nice gain from about 4500 on up to redline at 8200.
Check the collector diameter. Go with which ever has the larger. The ITR header should have a collector diameter of 2-3/8" or 2-1/2". That is the main bottle-neck on the stock b16 header, where it shrinks down to a tiny 2" or so...
If you also replace the full exhaust system with larger diameter piping (2-3/8 ro 2-1/2) you'll notice a slight drop in torque below 3000, but a nice gain from about 4500 on up to redline at 8200.
16-Mar-2011, 02:14 PM
#8
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Join Date: Sep 2007
Location: Where my car is.
Posts: 5,460
^Yes.
Given the option to choose between a steel header with 2.5" collector or a stainless header with a 2.25" collector, I would choose the one with the larger collector over the one with better material, but that's just me. And of course, a stainless header with 2.5" collector would be the best option.
Given the option to choose between a steel header with 2.5" collector or a stainless header with a 2.25" collector, I would choose the one with the larger collector over the one with better material, but that's just me. And of course, a stainless header with 2.5" collector would be the best option.
21-Mar-2011, 05:29 PM
#13
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Join Date: Jul 2010
Posts: 46
Posting here to save some space. Anyways I ended up going with the DC sport header just cause my buddy was selling it for dirt cheap.
After putting on the header I notice that there is some smoke coming from where it attaches to the block. Could it be a leak in the gasket somewhere?
After putting on the header I notice that there is some smoke coming from where it attaches to the block. Could it be a leak in the gasket somewhere?
22-Mar-2011, 03:32 PM
#15
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Join Date: Oct 2010
Posts: 38
some say change the gasket everytime you take it off. but hope its the gasket because if its a warped flange then that may be the reason it was dirt cheap
22-Mar-2011, 10:31 PM
#16
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Join Date: Sep 2007
Location: Where my car is.
Posts: 5,460
My gasket is the original with over 260k on it. As long as it's in good condition, there's no reason to replace it.
Is there exhaust blowing out at the flange or is there just some smoke coming off the pipes/flange? If there is any moisture or other foreign materials (oil etc) that got on the header, it'll "cook" it off when it gets hot...
Is there exhaust blowing out at the flange or is there just some smoke coming off the pipes/flange? If there is any moisture or other foreign materials (oil etc) that got on the header, it'll "cook" it off when it gets hot...
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