JMB

The problem with comparisons here is it's not apples to apples....if you had a 1-7/8" header with a properly designed 3-1/2" merge collector and compared it to the 2" with a 3-1/2" merge collector the answer would be very simple...stick with the 1-7/8", absolutely no contest! Now on the flip side, if you have an improperly designed 1-7/8" header with the C6 Industry standard 3" collector (whether it's a merge or not) it is possible that a 2" header with a properly designed 3-1/2" merge collector with supporting 3-1/2" "X" pipe and duals just might make significantly more power!

I had Roman at Burns Stainless design my triple stepped headers for my 800FWHP LS7 and the primaries start at 1-7/8" with a 4" dia merge collector......he could have picked any size and he didn't....take a look at the number of headers they design and ask yourself......does an Internet rumor or amateur's opinion about 2" primary headers outweigh the professionals? I don't think so.....and as I sited above....you could get more power but not for the reason that you think you did! I happen to have 30+ years of experience in designing the ultimate quiet street exhaust systems that give up zero power so I'm happy to share some free advice

lane_change

Still wanting to see a back to back comparison to the ARH 2" setup on a heavily modified car.

phxcobra

I'm closer to 620whp actually. I'll ask Nick what his thoughts are. Thanks for the feedback.

SteveDoten@ARH

Fran@RaceProvenMotorsports

zulatr

hey Steve -
See you moved into my old home town area, still get down there regularly to see my dad.
I've moved "up" to a C6Z, doing "stuff", like heads and cam this winter.
Let me know if you ever have take-offs, trade in or seconds on some 1 7/8 headers with x pipe and cats.
I can pick them up in Deer Park.

SteveDoten@ARH

We won't have any trades or take-offs, I'm sure we can work something out though

Congrats on the new Z, I noticed you sold the '03 awhile back

SteveDoten@ARH

We have a few sets going into Production as I type this, appreciate the orders!!

Twistedpixels

Curious what your best price for 1 7/8 with cats would be. I am looking to switch from Pfadt 1 7/8. They seem to be choking the car up with my cam. I have heard from other installers that they saw the same thing happen on other cars. I have been looking for some used ones but no one is selling them it seems. PM me if you can.

Vito.A

American Racing headers are a work of art. The 1 7/8" Z06 header is the nicest header I've seen (and we have compared them to some extremely expensive sets of hand made race headers). I'm sure the new 2" to 2 1/8" header is just as nice. It's really great to see such high quality parts manufactured here in the USA.

FRDnemesis

Just out of curiosity, why an H-pipe instead of an X-pipe? Space constraints?

Jeff

SteveDoten@ARH

Thanks for the good words

SteveDoten@ARH

Thanks very much for the Sales/inquiries!!

SteveDoten@ARH

Bump

Cordes Performance Racing

Looking forward to testing a set on my special project

FNBADAZ06

What would be needed to use these with the Akrapovic EVO exhaust system ? I'm currently using the B&B 1 7/8th LT, which bolt directly to my EVO exhaust, but I suspect these headers might require and additional piece to use the existing titanium x-pipe.

Or, do I use this .... "Optional extended H-Pipe with reduction to adapt 3” Connection Pipes to rear axle (Direct Bolt-In Kit)"

Cordes Performance Racing

you have to go to their x pipe, done these and your akra x won't work unless you are willing to cut it and make it a slip joint at the mid portion of the x. At that point you would be saving an insignificant amount of weight to warrant keeping the akra and cutting it up.

MTPZ06

Please don't hack up a work of art like the Akra Ti system...but I doubt you would.

Its interesting to revive an old thread now and then...didn't recall the post below. While probably costly, I bet Burns could design a custom set that would retain your Akra Evo system just like the B&B LT's...but at what cost, and for what benefit is anybody's guess.

FNBADAZ06

No hacking up of the x-pipe for sure

I had given thought of the Burns route .....even sourced out this web article about having a custome set made ..... http://www.enginelabs.com/engine-tec...-race-headers/

Ultimately, I think Joe will be correct in that it would be worth the replacement of my titanium x-pipe in favor of using the ARH mid-pipe, which would then connect to my titanium over axle and muffler setup.
From a cost perspective, I would think the ARH solution would be the most cost effective, but I wouldn't be opposed to talking to Burns.

As I will be spraying my motor in the near future, the move to the 2" and a proper 3 1/2" collector is appealing.

Unreal

IMO, complete waste of money that can be spent better elsewhere.

Cordes Performance Racing

agree'd, I am all for moving you to a 2'' header but these I don't see the justification of the cost worth it. now on my car or unreals yes we would potentially gain something.