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E46 M3 (2001-2006) Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006.


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Old Mon, May-22-2017, 04:37:14 AM   #111
blake_m3
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Default Re: American Racing Headers for the E46 M3

They look sweet!

Just wondering if they will fit on RHD cars?
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Old Mon, May-22-2017, 04:54:44 AM   #112
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Default Re: American Racing Headers for the E46 M3

All I really want to know about these headers is how much power and torque throughout the powerband do these make over my Supersprint V1's, how do they sound, and how much do they cost?
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Old Mon, May-22-2017, 04:55:12 AM   #113
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Default Re: American Racing Headers for the E46 M3

Quote:
Originally Posted by AR Headers View Post
The previous setup consisted of a competitor’s headers consistent in design with what’s currently available. They connected to catless connection pipes that routed back to section two and onto the SuperSprint race muffler. After extensive tweaking by Frank Smith to the previously catless tune, the ARH system made an additional 15WHP over the previous exhaust!

This would equate to huge performance gains over a factory E46 system, which typically puts down around 270whp. The ARH system, with an Intake, and Supersprint race muffler put down 335 WHP after Frank’s tune. From 6200 RPM on up, it picks up across the board. (See Graph)

That’s 65 wheel horsepower gain from a factory M3 paired with an intake and tune!
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Originally Posted by anewman9 View Post
The before Catless headers were Agency Powers
Honestly I think this is pretty impressive, 15 WHP over the Agency Headers with the TTFS Engine Tune. The real question is what is the price? If this setup costs $3000 I will stick with my SGT setup.


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Old Mon, May-22-2017, 04:55:53 AM   #114
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Default Re: American Racing Headers for the E46 M3

The amount of in this thread lol.
Few things to note from my own experience:
- 15whp is a massive gain from a catted header over a none catted header. Basically unheard of. I would have never believed it hadn't been for Stan actually being there and I know this guy doesn't f**k around lol
- A car with stock cams, doesn't need nearly as much flow as a cammed car. No exhaust combination made power on my none cammed car till I had my cams installed, then exhaust started making power. I believe this will kill with cams
- This can very well be the ticket to 390 whp NA fbo so chill guys.
-stop throwing prices around till we hear from the vendor (ARH pretend you didnt read any of those and be gentle im in at 1k group buy price )
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Last edited by HassanEido; Mon, May-22-2017 at 09:28:52 AM.
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Old Mon, May-22-2017, 04:59:48 AM   #115
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Default Re: American Racing Headers for the E46 M3

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Originally Posted by stash1 View Post
Wyatt, I've either personally dyno'd, or have witnessed pretty much every header currently offered and yes...they're all within about 5HP of each other. I also currently have SSV1's installed on my car and I can guarantee that they are within about 5HP of my previous SGT headers. I will be dyno'ing a set of the ARH headers as well (hopefully very soon), and I'll report back w/post dyno results.
This is the comparison I'm dying to see. Then we should know if we have a header that beats the V1 in parts of the curve, overall, or even at all. Who knows maybe a header more suited to the modified NA guys. On the surface it looks like it would be great for the F/I guys.

At the very least it's another option on the market that produces good power. Regardless the outcome it's exciting to see more stuff being developed for this platfom!
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Old Mon, May-22-2017, 05:05:05 AM   #116
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Default Re: American Racing Headers for the E46 M3

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Originally Posted by Bigred455 View Post
This was my take on the dyno graph as well. A prior post said there was no loss anywhere, but to me it seemed there was some loss down low? Maybe its the angle or the clarity of the dyno graph pic posted?

Really excited to see these coming to market!!!
the losses (unless my eyes are confusing which is which) at the lowend arent that significant, not like you get with too short of a collector length. looking at the design IMO if these were stepped with smaller pipe say 1-5/8" off the port transitioning to 1-3/4" and a 2.5" collector choke would probably bring that back up without hurting topend at this power level. then again there is probably a reason why some designs have more separation between pulses
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Last edited by digger; Mon, May-22-2017 at 11:56:20 AM.
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Old Mon, May-22-2017, 05:35:45 AM   #117
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Default Re: American Racing Headers for the E46 M3

Quote:
Originally Posted by stash1 View Post
Wyatt, I've either personally dyno'd, or have witnessed pretty much every header currently offered and yes...they're all within about 5HP of each other. I also currently have SSV1's installed on my car and I can guarantee that they are within about 5HP of my previous SGT headers. I will be dyno'ing a set of the ARH headers as well (hopefully very soon), and I'll report back w/post dyno results.
would love to see a comparison dynos of SSv1's and SGT's if you have them.
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Old Mon, May-22-2017, 01:37:24 PM   #118
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Default Re: American Racing Headers for the E46 M3

My JVT's may need a new home. 345 whp is just too much for them to support lmao.

Anyone get a price yet?
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Old Mon, May-22-2017, 03:04:05 PM   #119
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Default Re: American Racing Headers for the E46 M3

Quote:
Originally Posted by anewman9 View Post
What in regards to installation?
It took me a while to install Euro headers and with this being 1 piece, I was curious what type of install issues (if any) you might have run into?

Maneuvering the 2 piece setup was extremely difficult but probably because I had the car on jacks.

65WHP
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Old Mon, May-22-2017, 03:27:41 PM   #120
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Default Re: American Racing Headers for the E46 M3

Quote:
Originally Posted by HassanEido View Post
The amount of in this thread lol.
Few things to note from my own experience:
- 15whp is a massive gain from a catted header over a none catted header. Basically unheard of. I would have never believed it hadn't been for Stan actually being there and I know this guy doesn't f**k around lol
- A car with stock cams, doesn't need nearly as much flow as a cammed car. No exhaust combination made power on my none cammed car till I had my cams installed, then exhaust started making power. I believe this will kill with cams
- This can very well be the ticket to 390 whp NA fbo so chill guys.
-stop throwing prices around till we hear from the vendor (ARH pretend you didnt read any of those and be gentle im in at 1k group buy price )
Dude, it's not "just a header", it's a full blown racing header/midpipe assembly that was compared to a knockoff "header-only". Further, the knockoff isn't the current, long-standing top gun SS V1.

I'll happily eat my words if we see anywhere near this delta when compared to the V1. I'm hoping I'm dead wrong and these are the final word in header design for this car - no losses down low, healthy mid and screaming top over anything else available. But we can't say that at this point, is all I'm saying. Honestly, if these guys can match the SSV1 at ~66% the price (catted) then that would be a HUGE win. The top end seems to be there, but I'd like to see more midrange comparos.

Edit - it looks to me like the SSV1 catted makes 15-20 whp over the Euro setup and a butt-load more low end, so I wouldn't call 15 unheard of from header to header. Example:

http://www.m3forum.net/m3forum/showp...5&postcount=51
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Last edited by EricSMG; Mon, May-22-2017 at 03:48:09 PM.
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Discussing American Racing Headers for the E46 M3 in the E46 M3 (2001-2006) Forum - Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006. at BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3 | F80/X)