I've been debating back and forth between the two setups and can't really decide. Any opinions on quality, sound, performance....etc...I'm planning on Spring for the install. Any opinions would be great.

 

I think you would be happy with either. I chose the ARH with o/r h pipe and do no regret it at all

 

We used to install and use Kook's here at Saleen. We switched to ARH and all of our engineers have commented that they preferred the sound. My techs said the fit was alot nicer than the kooks. I put some ARH on my 04 with the catted x and im really happy with them.

 

What does ARH stand for ? I'll go with the kooks with a catted x-pipe and corsa axle back

 

I went with ARH (American Racing Headers) and I am extremely happy with them. the fit was great and the sound with the o/r h pipe is awesome.

 

both make quality products! the ARH are true LTs and the Kooks are a bit more of a mid length tube as I understand