Question on OBX Headers
Thread Starter
Melting Slicks
Joined: Mar 2009
Posts: 2,300
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From: Odessa FL
St. Jude Donor '10-'12-'13-'14-'15-'16-'17
Question on OBX Headers
Are OBX headers 1 7/8 or 1 3/4? I have seen both sizes in different advertisements. Thanks for any information.
Thread Starter
Melting Slicks
Joined: Mar 2009
Posts: 2,300
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From: Odessa FL
St. Jude Donor '10-'12-'13-'14-'15-'16-'17
Team Owner
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From: East Meadow NY
St. Jude Donor '12
Thread Starter
Melting Slicks
Joined: Mar 2009
Posts: 2,300
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From: Odessa FL
St. Jude Donor '10-'12-'13-'14-'15-'16-'17
Melting Slicks
Joined: Oct 2007
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From: It's true money can't buy happiness, but it is more comfortable crying in a Corvette than on a bicyc
St. Jude Donor '13
Actually there are several different vendors advertising different measurements: RSA Performance ads say 1 3/4 (which is 1 6/8), Spartec ad says 1 7/8, for example. The actual measurement that Chevylad took at 1.70 puts them at slightly larger than 1 5/8 and slightly smaller than 1 3/4. Not that it may make any significant difference in performance but I was curious to know given the different ads. If it has already been covered I apologize that I did not find it by searching.
If the difference is insignificant explain why 1 7/8ths headers out perform 1 3/4 headers when the difference is only 1/8th? Size matters.
Last edited by Camjamsdad; Apr 12, 2010 at 12:55 PM.
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Thread Starter
Melting Slicks
Joined: Mar 2009
Posts: 2,300
Likes: 115
From: Odessa FL
St. Jude Donor '10-'12-'13-'14-'15-'16-'17
Did not say that it was, I said "may not". I am not an expert and was only asking what the real size of the OBX headers were. I will leave the debate as to the difference in performance to you and the others who know more than me.
