Kooks vs American racing headers

[milktasd2]

posted over since there are more terminators with these headers.

Now everybody always lumps the kooks and arh headers in one category when comparing to other headers. My question is there a power difference between the mid length kooks and full length arh? Or is it just a question of which is cheaper? Looking to upgrade from my bbk 1 5/8 when I pull the motor to some 1 7/8.

 

[03 Indy Cobra]

I am pretty sure Kooks only makes a full length header for the 4 valve mod engine.

 

[milktasd2]

Maybe that was the old design kooks? I just saw where people where calling them mid length headers and the arh full length.

 

[03 Indy Cobra]

I just checked there site and I couldn't find any mid length headers just long tubes. Here's the link.

https://www.kooksheaders.com/automotive.html?find=2003-ford-mustang-cobra-v8-4-6-412160

 

[R3dfireCobra]

I think everyone lumps them together because they are the top tier for headers in fit, form, and function. Ive never run Kooks as I have the ARH's but I wouldn't hesitate to run either of them. I have the ARH 1-3/4 with 3 inch collector and its a nice header. No idea on performance gains, but the car sounds great with their matching midpipe and a magnaflow CB. The idea to run longtubes in a bigger diameter is to drop psi so essentially more boost can then be run as you are relieving backpressure.

 

[InvisibleBlade]

I have the ARH 1-3/4 with 3 inch collector and its a nice header. No idea on performance gains, but the car sounds great with their matching midpipe and a magnaflow CB.

Not to get off topic, but do you have any videos of your car with the current exhaust setup?

 

[R3dfireCobra]

Currently I do not

Sent from my SAMSUNG-SM-G935A using the svtperformance.com mobile app

 

[lucheski]

I've had both, ARH on former Cobra and Kooks on current...asside from minor differences in the flanges they are both top notch. I've got pics of Kooks and ARH header side by side

KOOKs TOP ARH Bottom....both 1-3/4 x3in

 

[GodStang]

Both are top notch. I have run different sets of Kooks over the past 12 years. The only make LTs. Great exhaust.

 

[badmpg03]

Has anyone run the 1 7/8 ARH or Kooks side by side in regards to ground clearance. It would be my deciding factory as both are great quality.

I have 1 5/8Kooks now and they are great but wanting to go bigger with new bigger blower.

 

[spdtrip]

lucheski which header has better ground clearance arh or kooks?

Sent from my XT1254 using the svtperformance.com mobile app

 

[spdtrip]

lucheski which header has better ground clearance arh or kooks?

Sent from my XT1254 using the svtperformance.com mobile app

Sent from my XT1254 using the svtperformance.com mobile app

 

[KLLR SNK]

Kook's appear more oval port while the ARH's look more rectangular port. How do they both match up to the exhaust ports of the heads?

 

[InvisibleBlade]

Has anyone run the 1 7/8 ARH or Kooks side by side in regards to ground clearance. It would be my deciding factory as both are great quality.

I have 1 5/8Kooks now and they are great but wanting to go bigger with new bigger blower.

My buddy and I just put the ARH 1 7/8ths on his car and they tuck up really well. Either his cats or mufflers will be lower than the collector.

 

[milktasd2]

Thanks for all the replies, I ended up going with the American racing headers. Should be in today.

 

[GodStang]

Thanks for all the replies, I ended up going with the American racing headers. Should be in today.

You will be very happy. Post up pics as you install!

 

[milktasd2]

Gonna be a while for that. About to pull the motor off to be built for boost and gonna paint the car while I'm at it. Still need to send the t56 off I got to have it inspected to be sure it's good and get the rest of my fuel system. If I'm lucky it will be this fall in time for cruising the coast, otherwise just whenever it's done. Lol

 

[InvisibleBlade]

I know you already purchased your headers, but just thought these pictures would help anyone in the future that may reference this thread.
These are ARH 1 7/8ths w/ 3" collector to catted midpipe and 3"Bassani catback.
They tuck up very well. The pictures are a little blurry, I didn't realize that till after.

 

[KingDing]

Does anyone know of a active ARH Vendor on the forums? Im looking for a Good price on a set of 1 3/4 with 3'' collectors. Also want a x pipe that necks down to 2.5 for my bassani cb.

 

[TRBO VNM]

I prefer the kooks over he ARH for easier install. Mainly mounting to the heads is easier with the Kooks. You do need to remove the steering shaft but that isn't a big deal.