2" Header guys, need your feedback
Thread Starter
Instructor
Joined: Sep 2007
Posts: 151
Likes: 7
2" Header guys, need your feedback
So im going to be doing a set of long tubes in the next couple months. My eventual power goals are in the 8-900whp range (for a 200mph standing mile) so im looking at the 2" headers as my best option. My question is of the manufacturers out there that offer a 2" header do either of them have better fitment or build quality? Any known issues?
Thanks
Steve
Thanks
Steve
Burning Brakes
Joined: Aug 2008
Posts: 855
Likes: 35
From: Katy/Houston Texas
1 7/8 are sufficient to make over 1000. Are they ideal and the most efficient, probably not. But I'm not an engineer so I'm just guessing on the second part. I have 1 7/8 on my car that is over 1000.
Drifting
Joined: Jul 2011
Posts: 1,629
Likes: 453
From: Finland
So im going to be doing a set of long tubes in the next couple months. My eventual power goals are in the 8-900whp range (for a 200mph standing mile) so im looking at the 2" headers as my best option. My question is of the manufacturers out there that offer a 2" header do either of them have better fitment or build quality? Any known issues?
Thanks
Steve
Thanks
Steve
Thread Starter
Instructor
Joined: Sep 2007
Posts: 151
Likes: 7
Thanks
Team Owner
Joined: Nov 2007
Posts: 24,035
Likes: 2,342
From: Gilbert AZ
I made 1048rwhp easy on 1 7/8. That was off charts rich AFR and low timing, air filter and dongle on. I'm swapping to 2" right now. For 800-900 I would just get some 1 7/8" ARH headers. They will make that power easily.
I had to ding in #2 primary to get the ARH to fit but Steve said that isn't correct so he is just sending me a new header that will fit without touching anything. The passenger side you need to drop the cradle to get past the bell housing/etc while my 1 7/8" went in no issue so install is a bit more of a pain.
I had to ding in #2 primary to get the ARH to fit but Steve said that isn't correct so he is just sending me a new header that will fit without touching anything. The passenger side you need to drop the cradle to get past the bell housing/etc while my 1 7/8" went in no issue so install is a bit more of a pain.
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Safety Car
Joined: Dec 2009
Posts: 4,754
Likes: 303
Yea, I've just heard issues from almost all people I've talked to online and in person about arh (surprisingly) and kooks have all gotten good comments on fitment. After my obx headers worked so well I stopped caring so much about slight differences between the big companies, so even if it gives up a few hp I'm ok with that.
Drifting
Joined: Jul 2011
Posts: 1,629
Likes: 453
From: Finland
Le Mans Master
Joined: Aug 2004
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From: NCM Lifetime#2195 Bulverde, Texas 78163
St. Jude Donor '13
Le Mans Master
Joined: Aug 2004
Posts: 5,972
Likes: 48
From: NCM Lifetime#2195 Bulverde, Texas 78163
St. Jude Donor '13
I switched from AR 1 7/8 to 2 inch and there was more clearance on the 2 inch ones. I did not have to dimple the runner and I have 3/8 inch clearance. The 1 7/8 was really close, And I did not dent either.
Team Owner
Joined: Nov 2007
Posts: 24,035
Likes: 2,342
From: Gilbert AZ
Actually my ARH have longer primarys than the LG 1 7/8" I have. Not sure if the LG 1 3/4" are longer or what but I have both side by side in the garage right now and it is very noticable how much longer the ARH 2" are over the LGs.
Thread Starter
Instructor
Joined: Sep 2007
Posts: 151
Likes: 7
Please keep us posted on this. Im wondering if its a batch issue. Did you get the first set of the 2" from a vendor or directly from AR?
Melting Slicks
Joined: May 2010
Posts: 2,378
Likes: 9
From: Katy TX
I'm trying to order my ARH 2" right now as well. Switched away from the LG 1 7/8". I wish someone would offer these headers with V-bands. What is up with all this crappy flange designs. I think Pfadt offered V-bands, but everyone else is either slip-fit, 2 bolt floating flanges, etc... Baffles me.
Team Owner
Joined: Nov 2007
Posts: 24,035
Likes: 2,342
From: Gilbert AZ
Vbands have little to no adjustment for car variation which leads to headers fittings like crap. If you want, once they are installed you could have vbands installed but then I wouldn't want to install them on another car.
ARH sent me a new header. Should be here any day. Talked to a buddy trying to put some kooks on and he said they fit like crap. 2" kooks on a c6z.
ARH sent me a new header. Should be here any day. Talked to a buddy trying to put some kooks on and he said they fit like crap. 2" kooks on a c6z.
Safety Car
Joined: Dec 2009
Posts: 4,754
Likes: 303
Vbands have little to no adjustment for car variation which leads to headers fittings like crap. If you want, once they are installed you could have vbands installed but then I wouldn't want to install them on another car.
ARH sent me a new header. Should be here any day. Talked to a buddy trying to put some kooks on and he said they fit like crap. 2" kooks on a c6z.
ARH sent me a new header. Should be here any day. Talked to a buddy trying to put some kooks on and he said they fit like crap. 2" kooks on a c6z.