OBX Headers
Advanced
Joined: May 2006
Posts: 70
Likes: 1
From: Lake Orion Michigan
Racer
Joined: Oct 2007
Posts: 321
Likes: 0
hey guys im thinking about buying a set o these this week. couple questions: If i left the 'cats' out is is my car going to throw any codes? I have a 1995 obd1? And lastly there are threaded holes for the o2 and egr and stuff right? Thanks.
Pro
Joined: Jul 2011
Posts: 544
Likes: 0
From: Atco Raceway in between Pa & Nj 13.073 @ 106 MPH
Last edited by c4speed; Oct 30, 2011 at 02:32 PM.
Advanced
Joined: May 2006
Posts: 70
Likes: 1
From: Lake Orion Michigan
1994 Corvette; automatic trans, performance axle ratio (3.07:1), 1.6:1 roller rocker arms, open air box. I was car #205 on this day.
Installed Hypertech tuning (same track/same day).
Then I installed the OBX headers and went back on a different day (Hypertech tuning still installed) and this was the results. I spun the tires at launch, on the 2nd pass. Hence the slower 60ft time and ET. I was car #201 on this day.
About 4 tenths quicker with the headers.
Last edited by girvin02; Oct 30, 2011 at 06:56 PM.
Race Director
Joined: Sep 2004
Posts: 13,793
Likes: 0
From: St. Peters MO Sometimes you have to prove yourself by doing alot of killing or alot of dying...
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Drifting
Joined: May 2007
Posts: 1,426
Likes: 165
From: Motor City
Agreed. The OBX headers were not available when I was in the market. The EM headers that I purchased cost me around $770 said and done and were not a direct fit. Clearancing one of the primary tubes had to be done as it was hitting the upper control arm. For that kind of $ I was very disappointed. Wouldn't recommend them to anyone.
Drifting
Joined: Dec 2007
Posts: 1,647
Likes: 4
From: Argillite KY
Frankenstein exhaust system.
I just got my OBX headers in and I will say that the quality is perfect. The little resonators are just that..........the worlds smallest glass pack. I picked up a Magnaflow stainless steel universal center muffler for a hundred bucks at Advance auto parts. It's actually a "X-Pipe" muffler and it's a straight through design. I got the Corsa mufflers from a forum member Justin, (StealthLT4). Thanks Justin for a great price. Thanks forum members for all the great information needed to make an informed decision. I owe you all a beer.
I'll have about $900 in my exhaust when done. That's cheaper than many cat-back systems and I got headers.
Here's a few pics:
I just got my OBX headers in and I will say that the quality is perfect. The little resonators are just that..........the worlds smallest glass pack. I picked up a Magnaflow stainless steel universal center muffler for a hundred bucks at Advance auto parts. It's actually a "X-Pipe" muffler and it's a straight through design. I got the Corsa mufflers from a forum member Justin, (StealthLT4). Thanks Justin for a great price. Thanks forum members for all the great information needed to make an informed decision. I owe you all a beer.
I'll have about $900 in my exhaust when done. That's cheaper than many cat-back systems and I got headers.
Here's a few pics:
Pro
Joined: Jul 2011
Posts: 544
Likes: 0
From: Atco Raceway in between Pa & Nj 13.073 @ 106 MPH
Frankenstein exhaust system.
I just got my OBX headers in and I will say that the quality is perfect. The little resonators are just that..........the worlds smallest glass pack. I picked up a Magnaflow stainless steel universal center muffler for a hundred bucks at Advance auto parts. It's actually a "X-Pipe" muffler and it's a straight through design. I got the Corsa mufflers from a forum member Justin, (StealthLT4). Thanks Justin for a great price. Thanks forum members for all the great information needed to make an informed decision. I owe you all a beer.
I'll have about $900 in my exhaust when done. That's cheaper than many cat-back systems and I got headers. Here's a few pics:
I just got my OBX headers in and I will say that the quality is perfect. The little resonators are just that..........the worlds smallest glass pack. I picked up a Magnaflow stainless steel universal center muffler for a hundred bucks at Advance auto parts. It's actually a "X-Pipe" muffler and it's a straight through design. I got the Corsa mufflers from a forum member Justin, (StealthLT4). Thanks Justin for a great price. Thanks forum members for all the great information needed to make an informed decision. I owe you all a beer.
I'll have about $900 in my exhaust when done. That's cheaper than many cat-back systems and I got headers.
Here's a few pics: you are going to love those headers.
Drifting
Joined: Dec 2007
Posts: 1,647
Likes: 4
From: Argillite KY
How are these holding up for people that have had them
Burning Brakes
Joined: May 2008
Posts: 1,008
Likes: 5
From: Greensburg PA
I have no doubt on that last part. I guess it's sad how used to the corvette tax i am. 
Since pricing is hedman territory and people have had bad experiences with those, I'm kind of skeptical.I know money doesn't always relate to quality, but it seems like thats been the case for me.
Since pricing is hedman territory and people have had bad experiences with those, I'm kind of skeptical.I know money doesn't always relate to quality, but it seems like thats been the case for me.
Pro
Joined: Jul 2011
Posts: 544
Likes: 0
From: Atco Raceway in between Pa & Nj 13.073 @ 106 MPH
I have no doubt on that last part. I guess it's sad how used to the corvette tax i am.
Since pricing is hedman territory and people have had bad experiences with those, I'm kind of skeptical.I know money doesn't always relate to quality, but it seems like thats been the case for me.
Since pricing is hedman territory and people have had bad experiences with those, I'm kind of skeptical.I know money doesn't always relate to quality, but it seems like thats been the case for me.
Thread Starter
Heel & Toe
Joined: Jan 2009
Posts: 17
Likes: 0
My OBX headers are on a 1985. I used 2 spacers that were the same width of the stock manifold and use the stock header bolt in that spot. The only one that I have not figured out yet is the lower bracket on the alternator. I not that concerned about that one as the other ones give it plenty of support. The spacer on the right side worked out perfect using a stock bolt in its place. I used Spectre Lockwire 1 " header bolts for the rest. they use a 7/16 wrench or a 3/16 Allen socket for the tight spots. Make sure you leave the headers loose on the right side so you can get the starter back in. I also wrapped the fuel lines with heat wrap where they seemed to be close to the header. Hope this helps.
Advanced
Joined: May 2006
Posts: 70
Likes: 1
From: Lake Orion Michigan
On my LT1 install, I made (3) 1.400" spacers out of tubing to place the alternator and dipstick brackets in there original locations. I ended up only using two of the spacers, as I decided to bend the front (shorter) alternator bracket instead of using a spacer. I could mail my spare to you (crzydrummer14), if you'd like. Where possible, I used stainless steel allen-head bolts, for the most clearance possible. I couldn't find the longer ones at my local hardware store, so I used hex-head (stainless steel) bolts in (2) places.
Here is a picture showing how I bent the front alternator bracket.
Here is a picture showing the rear alternator bracket (1.400") spacer.
I had to dent the pipe to make clearance for the bracket here.
And here's the dipstick with a spacer placing it in stock location.
Hope this helps.
Here is a picture showing how I bent the front alternator bracket.
Here is a picture showing the rear alternator bracket (1.400") spacer.
I had to dent the pipe to make clearance for the bracket here.
And here's the dipstick with a spacer placing it in stock location.
Hope this helps.
Last edited by girvin02; Nov 26, 2011 at 12:02 PM.
Safety Car
Joined: Feb 2000
Posts: 3,771
Likes: 0
From: MANDEVILLE, LA La
Thanx in advance I'm trying to do as much as I can up front to eliminate down time as it's my Daily Driver. And did you clamp them to existing exhaust or have to weld them?
Thanx c4speed.
