ARH C8 headers
Thread Starter
Burning Brakes
Joined: Sep 2006
Posts: 781
Likes: 82
From: MA
ARH C8 headers
Just got my C8 Z51 back from Nick at ARH and they did an awesome job! The ARH C8 headers add power, a louder, more throaty sound and look perfect in the engine bay. It was about a 240 mile ride home and the headers have this awesome light gold/silver color. You can't do any better than ARH, you get performance, a better sound, save a few pounds, clean up the engine bay and get a great looking set of headers. Nick, Jose and crew did a great install job Thank you guys! BTW I've used ARH on all my GM trucks, Camaros and Corvettes for years, quite simply they are the BEST! 
Last edited by racerx8; May 21, 2021 at 11:00 AM.
Thread Starter
Burning Brakes
Joined: Sep 2006
Posts: 781
Likes: 82
From: MA
Kracka, I'm sure it does make more power, definitely feels better, a bit more responsive. My Z51 only had 610 miles when the ARH's were installed and I'm positive they are a great addition to a great car. 
Race Director
Joined: Jan 2014
Posts: 10,709
Likes: 7,099
From: Fulshear, TX
Sounds great! At the moment I'm torn between ARH & AFE, but the KOOKS are definitely out and I have no internet in the Chinese knock-offs.
Last edited by Kracka; May 21, 2021 at 10:24 PM.
Thread Starter
Burning Brakes
Joined: Sep 2006
Posts: 781
Likes: 82
From: MA
ARH are the best, fitment, quality and price. I can only speak from my experience, that of some friends and my tuner, they all use and recommend ARH.
You'll be very pleased with your choice of ARH headers.
You'll be very pleased with your choice of ARH headers.
Racer
Joined: Sep 2019
Posts: 445
Likes: 479
Thread Starter
Burning Brakes
Joined: Sep 2006
Posts: 781
Likes: 82
From: MA
The list on the ARH C8 headers is $2073.75. The cost to install can vary with your shop but I'd say $500 to $700 would be the range, you can do it yourself the ARH install instructions are very good.
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Instructor
Joined: Jun 2012
Posts: 169
Likes: 69
I plan on installing the ARH headers with stock cats and mufflers when my C8 Z51 coupe is delivered sometime this summer whenever BG ends their various shutdowns. I like a good exhaust note around town, but on long trips prefer a quiet interior; my C6 Z51 does quite well in the noise department with Z06 headers and ‘mild to wild’ switch on the NPP mufflers.
Do the C8 ARH headers drone at highway speeds? Is the interior noise level much higher than stock while cruising and windows up?
Thanks, Bill
Do the C8 ARH headers drone at highway speeds? Is the interior noise level much higher than stock while cruising and windows up?
Thanks, Bill
Racer
Joined: Sep 2019
Posts: 445
Likes: 479
I plan on installing the ARH headers with stock cats and mufflers when my C8 Z51 coupe is delivered sometime this summer whenever BG ends their various shutdowns. I like a good exhaust note around town, but on long trips prefer a quiet interior; my C6 Z51 does quite well in the noise department with Z06 headers and ‘mild to wild’ switch on the NPP mufflers.
Do the C8 ARH headers drone at highway speeds? Is the interior noise level much higher than stock while cruising and windows up?
Thanks, Bill
Do the C8 ARH headers drone at highway speeds? Is the interior noise level much higher than stock while cruising and windows up?
Thanks, Bill
With the stock cats & muffler u probably wont notice any change.
Install was ~$500.00 at my shop>
Advanced
Joined: Jan 2020
Posts: 84
Likes: 71
From: Bismarck
1-7/8" or 2", which did yall go with? I assume you only need 2" for forced induction.......
NEVERMIND, just read the ARH post stating 1-7/8" is the way to go.
NEVERMIND, just read the ARH post stating 1-7/8" is the way to go.
Last edited by ZaXxon; May 24, 2021 at 10:25 AM. Reason: Researched
Safety Car
Joined: Nov 2007
Posts: 4,537
Likes: 1,402
From: Bethesda MD
Instructor
Joined: Oct 2020
Posts: 209
Likes: 43
Advanced
Joined: Jan 2020
Posts: 84
Likes: 71
From: Bismarck
Headers Installed!
Installed my ARH 1-7/8" headers over the holiday weekend. Fantastic quality, perfect fitment. They even came with gaskets and manifold hardware. I happened to be installing an AGW high wing at the same time, so I already had the back bumper off. Even without doing a wing install, I would highly recommend removing the rear bumper when doing this install. A lift also helps.
Just finished the install yesterday and went on a short cruise. Very noticeable sound difference when on the throttle, but very tame at normal cruising speed. Love them so far.
One other note, I ordered ARP stainless studs for the manifolds but ended up not using them. You can't get the headers installed with the studs installed (at least the way I was doing it), so it defeats the purpose. ARH included some nice quality 10.9 grade hardware (similar strength to grade 8) that I used with nickel based anti-seize.
Stock cats and cat back BTW
Just finished the install yesterday and went on a short cruise. Very noticeable sound difference when on the throttle, but very tame at normal cruising speed. Love them so far.
One other note, I ordered ARP stainless studs for the manifolds but ended up not using them. You can't get the headers installed with the studs installed (at least the way I was doing it), so it defeats the purpose. ARH included some nice quality 10.9 grade hardware (similar strength to grade 8) that I used with nickel based anti-seize.
Stock cats and cat back BTW
Advanced
Joined: Jan 2020
Posts: 84
Likes: 71
From: Bismarck
Originally Posted by langhorne_bill;[url=tel:1603710077
1603710077]Great Job! One question - does a normal 7/8 (22mm) O2 sensor socket work OK? Is that socket deep enough and have a wide enough side cut out for the wires?
Thanks, Bill
Thanks, Bill
The trick is you have to cut the little zip ties that secure the heat shielding on the O2 wires. This allows you to pull back the heat shielding while using the socket. The heat shielding slides right back in place when done.
Last edited by ZaXxon; Jul 11, 2021 at 12:33 AM.
Burning Brakes
Joined: Mar 2006
Posts: 790
Likes: 63
From: Ft Worth TX
Installed my ARH 1-7/8" headers over the holiday weekend. Fantastic quality, perfect fitment. They even came with gaskets and manifold hardware. I happened to be installing an AGW high wing at the same time, so I already had the back bumper off. Even without doing a wing install, I would highly recommend removing the rear bumper when doing this install. A lift also helps.
Just finished the install yesterday and went on a short cruise. Very noticeable sound difference when on the throttle, but very tame at normal cruising speed. Love them so far.
Stock cats and cat back BTW
Just finished the install yesterday and went on a short cruise. Very noticeable sound difference when on the throttle, but very tame at normal cruising speed. Love them so far.
Stock cats and cat back BTW