OBX header install
Thread Starter
Racer
Joined: Jun 2005
Posts: 341
Likes: 1
From: Akron Ohio
OBX header install
Next weekend I am going to be installing my OBX headers, any advice? do they go in from the top or bottom? I think I have all I need:
headers
X-pipe
copper header gaskets
locking header bolts
plugs
plug wires
Am I missing anything, it has been many years since the last time I put headers on a vette and I want this to go smooth.
headers
X-pipe
copper header gaskets
locking header bolts
plugs
plug wires
Am I missing anything, it has been many years since the last time I put headers on a vette and I want this to go smooth.
Tech Contributor
Joined: May 2008
Posts: 2,843
Likes: 16
From: Howell Michigan
St. Jude Donor '09-'10-'11
Hope your install goes smooth.
Advanced
Joined: Mar 2008
Posts: 79
Likes: 0
From: Houston Texas
You WILL need longer bolts for the for the resonaters. The spring bolts provided are not long enough and will not work. Everyone has had to make that change. The clamps that are provided aren't the best either but will work it is up to you if you want to change those.
Banned Scam/Spammer
Joined: Feb 2007
Posts: 50,093
Likes: 267
From: Oklahoma City
St. Jude Donor '09-'10-'11-'12-'13-'14-'15-'16-'17,'19,'22
You will need to drill/cut a hole in the tunnel plate for the 02 sensors. I tried to do it while mine was in the air. I found it easier to take it off and would suggest that. I could have saved about an hr just from that.
You have an 01 so it will be easier than my 99 with the Air Tube and Dip Stick.
You have an 01 so it will be easier than my 99 with the Air Tube and Dip Stick.
Advanced
Joined: Oct 2007
Posts: 76
Likes: 1
From: Cartersville Ga
anti-seize is a must........
zip ties
18mm plugs if you are deleting your rear 02s.....(18mm threads, toyota oil drain plug) or go to your local exhaust shop.
might as well change the oil while you have it in the air
i did not need to buy new bolts. the ones supplied worked fine....
driverside from the bottom
pass from the top
zip ties
18mm plugs if you are deleting your rear 02s.....(18mm threads, toyota oil drain plug) or go to your local exhaust shop.
might as well change the oil while you have it in the air
i did not need to buy new bolts. the ones supplied worked fine....
driverside from the bottom
pass from the top
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Racer
Joined: Jun 2009
Posts: 333
Likes: 0
that covers just about everything, they were pretty easy IMO. Much easier than other cars i've put headers on. It just seems like the vette was made with performance parts in mind. Everything is decently easily accessible. The only PITA part was the bolt that holds the air tube down on the back of the block, but ur 01+ so u dont have to worry about that.
Instructor
Joined: Mar 2008
Posts: 232
Likes: 2
From: Sacramento CA
You may also need to loosen/remove the starter when dropping in the passenger header. The clamps are junk, I got tired of dealing with them and had mine welded up! Definately modify the tunnel plate out of the car, I didn't, I hated it!
AMP Racing
Joined: Aug 2006
Posts: 10,752
Likes: 587
From: Washington TWP NJ
2023 C5 of the Year Finalist - Modified
2017 C5 of Year Finalist
St. Jude Donor '09-'10-'11-'12
Racer
Joined: Jun 2009
Posts: 333
Likes: 0
visualize... you have longtubes now... the collector is farther from the motor now. The o2 bungs are in the collector. They are angled just right so they don't fit under the tq tube plate. You will need to cut holes so that they will fit.
Advanced
Joined: Oct 2007
Posts: 76
Likes: 1
From: Cartersville Ga
i had enough clearance, but i drill a hole to compensate for the motor torquing up.....just in case....dont be scared a small 1" diameter hole will not affect the rigidty f the tunnel plate at all
Burning Brakes
Joined: Oct 2008
Posts: 1,062
Likes: 2
From: Minnesota City MN
I have heard that OBX is changing the front O2 bung location so no drilling will be needed. I guess my question is....why not just drill new holes, weld in new bungs, and seal up the old ones?
Pro
Joined: Dec 2003
Posts: 654
Likes: 1
From: chandler az
Not everybody can or wants to weld. It doesn't bother me, but it took a little experimenting with the extra material cut off from my modified resonators to get a bead to go down nicely, plus I had to get a new gas bottle for Argon and and the right stainless wire from Mcmaster-Carr. Of course, you could always just take it to a muffler shop and have them weld it. I just like learning to weld different materials.
