ARH 1 7/8 Header Install 2002 Vert
Thread Starter
Melting Slicks
Joined: Apr 2004
Posts: 2,301
Likes: 199
From: Valencia CA
ARH 1 7/8 Header Install 2002 Vert
My first C5 header install. Helped a buddy install some LG long tubes on a C6 a couple of weeks ago. That was my first experience with LT header install on C5 or C6. Took the two of us about 5 hours.
Started on mine about 7:30 last night.
Removed coil covers and coil packs from both sides. Removed valve cover from right side.
Removed left side ex manifold. (15.30 lbs)
Removed right side ex manifold. (15.0 lbs)
Removed stock pup cats, cats and aftermarket X pipe. (43.60 lbs)
Installed left side 1 7/8 header from the bottom. (12.20 lbs)
Installed right side 1 7/8 header from the top. I had to loosen the motor mount and raise the engine as far as it would go. (12.20 lbs)
Installed the ARH high flow cats and 3" X pipe. (27.7 lbs).
Also reinstalled all 4 O2 sensors.
Test drive at 2:30 am, top down, 70 degrees outside, love the sound through my previously installed Z06 Ti mufflers.
Total install time 7 hours.
Total weight savings: 21.8 lbs.
The A/C line is very close to the right side header. I don't see how bending it will create more clearance. Anybody have a before and after picture of how they bent the A/C line?
Started on mine about 7:30 last night.
Removed coil covers and coil packs from both sides. Removed valve cover from right side.
Removed left side ex manifold. (15.30 lbs)
Removed right side ex manifold. (15.0 lbs)
Removed stock pup cats, cats and aftermarket X pipe. (43.60 lbs)
Installed left side 1 7/8 header from the bottom. (12.20 lbs)
Installed right side 1 7/8 header from the top. I had to loosen the motor mount and raise the engine as far as it would go. (12.20 lbs)
Installed the ARH high flow cats and 3" X pipe. (27.7 lbs).
Also reinstalled all 4 O2 sensors.
Test drive at 2:30 am, top down, 70 degrees outside, love the sound through my previously installed Z06 Ti mufflers.
Total install time 7 hours.
Total weight savings: 21.8 lbs.
The A/C line is very close to the right side header. I don't see how bending it will create more clearance. Anybody have a before and after picture of how they bent the A/C line?
Melting Slicks
Joined: Sep 2011
Posts: 3,498
Likes: 680
From: The beautiful Alabama Gulf Coast!!
You might consider DEI aluminiumized heat shroud wrap for the AC lines. It comes in 36" x 1" lengths & uses Velcro. You can find it on Amazon for about $30. I used a couple of them to wrap the AC lines & the O2 sensor wires in my '02 coupe during my Dynatech long tube header install & it seems to work just fine.
Thread Starter
Melting Slicks
Joined: Apr 2004
Posts: 2,301
Likes: 199
From: Valencia CA
You might consider DEI aluminiumized heat shroud wrap for the AC lines. It comes in 36" x 1" lengths & uses Velcro. You can find it on Amazon for about $30. I used a couple of them to wrap the AC lines & the O2 sensor wires in my '02 coupe during my Dynatech long tube header install & it seems to work just fine.
Drifting
Joined: Aug 2007
Posts: 1,846
Likes: 128
From: Orlando Florida
You might consider DEI aluminiumized heat shroud wrap for the AC lines. It comes in 36" x 1" lengths & uses Velcro. You can find it on Amazon for about $30. I used a couple of them to wrap the AC lines & the O2 sensor wires in my '02 coupe during my Dynatech long tube header install & it seems to work just fine.
Thread Starter
Melting Slicks
Joined: Apr 2004
Posts: 2,301
Likes: 199
From: Valencia CA
Definitely a SOTP loss of torque off idle. I'll see if I can get it back with some tuning.
I kind of expected it with an 1 7/8 header. I'm getting ready for the YSI install.
I kind of expected it with an 1 7/8 header. I'm getting ready for the YSI install.
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Tech Contributor
Joined: Dec 1999
Posts: 32,910
Likes: 2,402
From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
While you need to tune the PCM, might consider a ported Throttle Body.
It wont add a lot of HP but it will make the throttle response a little better. With the proper tune you will see that power and economey come back and may even get a lot better.
It wont add a lot of HP but it will make the throttle response a little better. With the proper tune you will see that power and economey come back and may even get a lot better.
Team Owner
Joined: May 2003
Posts: 23,480
Likes: 9
From: East Meadow NY
St. Jude Donor '12
Enjoy the extra horses.
Le Mans Master
Joined: Sep 2003
Posts: 6,276
Likes: 227
From: Farmington CT
Cruise-In VII Veteran
I'm guessing you've got forged pistons in that motor? YSI is typically for those looking to push past the 750whp mark.
We average 1-1.5 hours installing ARHeaders, but that's with 2 techs and completing 100's of installs.
Good point on the weight savings. that's quite a bit.
Nice work
We average 1-1.5 hours installing ARHeaders, but that's with 2 techs and completing 100's of installs.
Good point on the weight savings. that's quite a bit.
Nice work
Safety Car
Joined: Jun 2005
Posts: 4,977
Likes: 256
From: St. Louis Missouri
I'm in the midst of installing a set in my 2001. I installed my passenger header from the bottom and didn't remove the passenger valve cover. I did, however remove my starter because it seemed necessary to get my LG Pros off initially. Getting the starter installed and the wires reconnected was easily the biggest time drain of the task so far (other than waiting for shipping multiple times). My AC line appears to have sufficient clearance.
Removing the battery shroud makes it easier to see what's going on. It only takes about 30 seconds to remove. There is a plastic fastener on the cowl, another on the opposite end on the wheel well and perhaps there was originally a speed nut on a stud at the bottom of it near the middle of the bend.
Removing the battery shroud makes it easier to see what's going on. It only takes about 30 seconds to remove. There is a plastic fastener on the cowl, another on the opposite end on the wheel well and perhaps there was originally a speed nut on a stud at the bottom of it near the middle of the bend.
Thread Starter
Melting Slicks
Joined: Apr 2004
Posts: 2,301
Likes: 199
From: Valencia CA
I'm in the midst of installing a set in my 2001. I installed my passenger header from the bottom and didn't remove the passenger valve cover. I did, however remove my starter because it seemed necessary to get my LG Pros off initially. Getting the starter installed and the wires reconnected was easily the biggest time drain of the task so far (other than waiting for shipping multiple times). My AC line appears to have sufficient clearance.
Removing the battery shroud makes it easier to see what's going on. It only takes about 30 seconds to remove. There is a plastic fastener on the cowl, another on the opposite end on the wheel well and perhaps there was originally a speed nut on a stud at the bottom of it near the middle of the bend.
Removing the battery shroud makes it easier to see what's going on. It only takes about 30 seconds to remove. There is a plastic fastener on the cowl, another on the opposite end on the wheel well and perhaps there was originally a speed nut on a stud at the bottom of it near the middle of the bend.
Last edited by Rookieracer; Oct 9, 2013 at 04:09 PM. Reason: Too many "insteads"