Nameless Performance Equal Length Stepped Header

[ImAwesome]

Rogue is my favorite brewery

[Captain Snooze]

Hi Jason,
Thanks for the great information.
What are the chances of a single exit cat back design for those of us who want a light as possible set up? Perhaps with an aluminium or titanium muffler? Function>form.

[OrbitalEllipses]

Originally Posted by Jason@Nameless

We'll always offer catalyst options in all of our designs. Especially if there is a regulatory reason to compel us to run them for a specific market. Keep us informed on what other regs you have, etc when we discuss design ideas. Orbital, what state are you in?

I'm in MD, right next door to VA. Emissions is purely ODBII; a CEL or readiness monitor will fail you, so any bypassed or removed cats need to be done so without triggering these. In addition there's a visual check under the car; they're probably not the most attentive, but when going for a state inspection there's sometimes a sharp-eyed inspector who knows the difference between a resonator and a cat.

I had no problems passing my WRX with two removed cats (only one monitored) and a full 3" turboback with high-flow cat. That's not strictly legal from what I understand, but it was legal enough. Often times going completely catless doesn't even net you that much horsepower. So as I said, I'm fine with there being one cat, but I'd prefer it be the downpipe cat.

[Tainen]

can't wait for dyno numbers.

it'll be fun to throw this on the dyno on saturday vs a bunch of stock cars

I'll post up vids and pics when it's back in my posession of the whole setup, as well (even though I know Jason will be posting vids too). I'm planning on road testing the catless headers long term to see if any CELs pop up, since I know this will probably be the catless production header that Nameless sells, just to give all the other BRZ/FR-S owners peace of mind for long term CEL/engine health. I'm hoping the resonator solution keeps them quiet enough for my wife, haha.

[UncleFester]

Originally Posted by Tainen

can't wait for dyno numbers.

it'll be fun to throw this on the dyno on saturday vs a bunch of stock cars

I'll post up vids and pics when it's back in my posession of the whole setup, as well (even though I know Jason will be posting vids too). I'm planning on road testing the catless headers long term to see if any CELs pop up, since I know this will probably be the catless production header that Nameless sells, just to give all the other BRZ/FR-S owners peace of mind for long term CEL/engine health. I'm hoping the resonator solution keeps them quiet enough for my wife, haha.

for being our test mule.

[matsayswhat]

Originally Posted by OrbitalEllipses

That just looks like a better header! I'd be interested in a catless header design for optimum efficiency, but would probably go for a catted downpipe/overpipe to pass emissions ( there's a visual check) and for green feel-good points. IMHO the header cat is the more important one to remove for power gains, so that further downstream cat shouldn't matter too much. Now make it so Nameless, so you can have all my pennies!

As much as I'm averse to buying parts that don't make power, I would buy a resonated midpipe if it functioned well in noise reduction and was lighter than the OEM component.

I'm on exactly the same page as you. The nice thing about having at least one cat is that you don't have to deal with too much of a smell either. It takes the edge off

Great looking pics Nameless, I'm hopefully going to the Big NW meet, I'll definitely stop by and say hi if I do.

[eriktherod]

Aww... I had gotten used to the go kart smell

[EsoBOFH]

Originally Posted by Jason@Nameless

Rogue, Full Sail, Deschutes, Widmer, Red Hook? Any regulations against us throwing a good beer in every package we ship down there?

Speaking on behalf of Canadians, i'm good with you including this in every package.. just kindly don't indicate it on the customs docs haha.. Deschutes is good, rogue, and i love mirror pond... lots of great breweries in the PNW! (that's a Canadian endorsement, where we only drink good beer - so it has to be good!)

Back to the topic at hand... I asked before, but maybe wasn't as pointed as necessary. Will your full exhaust (the end-to-end setup) work with a supercharger in the future? Will this flow enough for the HKS GT line?

Really considering your setup here.. but want to think about the future, which will likely include the HKS GT series SC for me.

thanks!

[white devil]

I wish north Florida had companies so transparent and willing to "try" anything for my car

[white devil]

Its been a quiet day.......

[Dimman]

Updates?

[Jason@Nameless]

So the weekend was full of me sleeping (well, to be honest, kayaking). I am uploading the video clips to youtube right now but our internet has been pretty uncharacteristically slow today.

I'm also compiling the details on the catless header. Made more power in the top end of the powerband, but less at the low end. To the extent that the catted overall is a better design in our opinion unless you're revving out to redline and shifting every time. If you're doing that, you'll pick up 6hp/6tq at the cost of 10ft lb at the low end and 8hp at the low end. That being said, we believe a change in primary/secondary sizes with the catless design may be able to get the best of both worlds. We've also been busy trying to get some traction on getting our own BRZ or FRS here. Looks like we'll have one in either the next few days or the next week or two. Pretty stoked about that. I'm putting together some dyno graphs to share later today. We also had some success with a replacement intake pipe (made 3whp consistently replacing the factory hose with a stainless intake pipe and retaining the factory airbox/filter). I'll be sharing that detail in another thread.

Here's a pic of the intake pipe (hella jdm, yo):



Will post shortly, waiting for this youtube vid to upload and headed to lunch in the meantime, will be back here afterward and share all the dyno details. The long and the short of our results at the dyno are that we think the smaller primary setup may work better in catless form to retain the low end torque and add the high end power as well. That'll probably be next. Also considering a long tube 4-1 design still. Will also start that with 1.5" Primary and step it out to 1.625 or 1.750 (triple stepped design).

Sorry for the radio silence, we're working on a rotated turbo kit for the STi this week and have a lot of irons in the fire, but we're committed to continuing our development pace on the BRZ as well. Very excited to get our own car in here for some higher end developments and suspension/chassis testing.

Jason

[himbo]

Slow intertubes is probably from all the heat related power outages.

Wow! I didn't think anymore power was possible from just the design! Guess it goes to show factory could have easily raised the output- but decided to keep the motor corked
While I don't think this motor will make as much power as a tuned k20 but seems like it might make a nicer more linear powerband (assuming tq dip gets rectified). I wonder if we'll see 8 to 8.5k rev limit...

Kudos to you guys for all your efforts and diligence!

Anyone who questions nameless' rep should go to nasioc and read up on them. They're highly regarded in the Subaru community.

[Opposed]

Originally Posted by himbo

Slow intertubes is probably from all the heat related power outages.

Wow! I didn't think anymore power was possible from just the design! Guess it goes to show factory could have easily raised the output- but decided to keep the motor corked
While I don't think this motor will make as much power as a tuned k20 but seems like it might make a nicer more linear powerband (assuming tq dip gets rectified). I wonder if we'll see 8 to 8.5k rev limit...

Kudos to you guys for all your efforts and diligence!

Anyone who questions nameless' rep should go to nasioc and read up on them. They're highly regarded in the Subaru community.

I think it will make more than K20 minus cams. Most bolt-on and tuned K20's I have seen with stock cams dynoed around 195-200 whp. I think with I/H/E and tuning we might be close. Still good to see some uncorked power as well. I think with the already proven 25-30 whp gain with full exhaust would wake this car up quite a bit.