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Old 10-31-2009, 01:16 AM   #1
Kodiak Ak
 
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ARH or Dynatech?

I know another header/exhaust ???

Witch header should I get? ARH with high flow cats or Dynatech with high flow cats?

What's the build quality of each?

going on an L99 with OEM cat back with rear muffler delete. OEM resonator still installed.

I can only hope that someone does a header test/comparison soon

I'm ready to buy. just not sure wich header is the best to go with. I want one that will last and make good power.
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Old 10-31-2009, 07:21 AM   #2
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If you are leaving the stock exhaust on the car you are going to miss out on some HP.

The ARH system is designed to replace the entire exhaust system all the way to the rear diff. That system is absolutely the best available.

If you are just doing headers and cats, I would probably still use the ARH system that is built for cat-back systems. That way you can still have it mounted up to yoru factory pipes, but in the future, you can meet it up with any cat-back you want.

In no way am I putting down dynatech, but the fit and finish of the ARH system is second to none. They are also showing incredible gains.

That is just my opinion. I am always happy to answer any questions if you have them.
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Old 10-31-2009, 08:19 AM   #3
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I would agree ZZ........ARH.
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Old 10-31-2009, 09:37 AM   #4
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Just picked up my 1 7/8 ARH's certianly look like the real deal!
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Old 10-31-2009, 10:04 AM   #5
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ARH, merge collectors baby! super scavenging...
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2010 SS L99, 536rwhp 10.843@126.72. Whipple Supercharger stock pulley, ARH 1 7/8 longtubes w/ catted xpipe, magnaflow 3" mufflers, ADM Race CAI, 3:70 gears, lightweight wheels and nitto drag radials. Stock internal L99, stock converter.

Bolt on best before blower 12.22@113.29 w/ nothing but ARH headers, catted x-pipe, ADM CAI and a tune on stock Pzero`s!

Other car 2008 C6 Ls3, z51, A6, Npp Exhaust, best bonestock pass 11.80@118.82, Number 2 on the Corvette Forums Bonestock fastest list..
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Old 10-31-2009, 04:55 PM   #6
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ARH!
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Old 10-31-2009, 06:45 PM   #7
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I really want to see a comparison, they both claim over 30rwhp gains untuned.
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Old 10-31-2009, 08:33 PM   #8
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ARH or Kooks. Cant go wrong with either.
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Old 11-01-2009, 12:19 AM   #9
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american racing headers are a step above everyone else in power gains and looks it just the way it is
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Old 11-01-2009, 08:21 AM   #10
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Quote:
Originally Posted by Kelso View Post
american racing headers are a step above everyone else in power gains and looks it just the way it is
Seemed that way to me as well. Thats why I bought the entire kit. Took me all of 1.5 hours to install and it was seamless.

ARH is my choice.
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Old 11-01-2009, 12:10 PM   #11
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i went with the dynatech's, better rep and cust service, great quality, fit and finish, install was quick an easy for me. used there product on 2 previous vehicles with great results. i've never used arh or kook's, so i went with what i know. very happy with my decision.
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Old 11-01-2009, 04:31 PM   #12
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to say ARH makes more hp right now without seeing any type of comparison is misleading. Both have good reps so lets wait until we see some Dynatech dynos before we go jumping to conclusions....again.
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Old 11-01-2009, 10:02 PM   #13
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Quote:
Originally Posted by Darin Morgan View Post
Seemed that way to me as well. Thats why I bought the entire kit. Took me all of 1.5 hours to install and it was seamless.

ARH is my choice.
do u have a clip of your set up? i was thinking about that exact set up
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Old 11-01-2009, 10:10 PM   #14
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check this out. ARH with factory mufflers....It does have a cam, so it would be slightly less aggressive but not much!!!

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