I'm notnjust talking about their headers though. I'm talking about their header high flow cat combo.

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There's nothing special about their cats. Their intake is the only product worth buying.

Okay. So stillen sucks basically.

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I'd be happy about that torque you have. It's really high; a little too high; Nice numbers though.

Torque
 

Why do you say to high, ??? I'm new at this.

I didn't even buy their intake. 2.5" of pipe and k&n filters don't cost $500! What a Fing rip!

Maybe, but I just swapped my AAM R-Line (which we could not get the tune right) for these intakes and the results we had were quite impressive.

OP, I will post my N/A results soon :hello:

http://i17.photobucket.com/albums/b7...psb5c59ba5.jpg
-Takeda cold air intakes
-Motordyne ART pipes
-Custom headers from Speed Force Racing in CA
-M370 Manifold
-Uprev
-6 speed

Do I win highest torque bragging award?? Haha

Is the 301.7 HP plot supposed to be your stock baseline or had you already modified something at that point?

What kind of dyno?

And no, you don't win. Mike has higher

He said torque king, Not Hp. But i think he was probably on a Dynojet with those baseline numbers lol

I wanna know more about that guy that put down 300/275tq - that tq seems high for the amount of hp

Lol, my bad, my Inglish isn't good

i can wait to start working on my car to get more WHP!!!!

2011 G37X Coupe 7spd auto
298whp 230 wtrq ESP's Mustang Dyno.
Only Stillen Gen3's + Exoctic Speed catback and UPREV.
Will have a new one soon after adding FI RHFC's an changing intakes to Takeda longtubes

No I was already modified but untuned: Tanabe exhaust, ERZ HFC's, M370 mainfold and K&N drop-ins.

Untuned on a dynojet it make 294/245 , after uprev it made the 301 plot.

Here's a full description: http://www.the370z.com/tuning/70920-...ing-uprev.html

The 328/283 plot was after Takedas, Art Pipes and the custom headers and more tuning.

I've dyno'd the car on several other dyno's, the numbers have always been consistent.

:tup:

In the other thread you said the temp was bad. It doesn't make a difference really if the dynojet was set to SAE as that will adjust the graph based off of 75 degrees. To see a difference temp makes, you need to do both uncorrected.

What was the setting during the 294/245? Hope it wasn't STD as those are inflated as most peoples here are.

No they were all SAE, my numbers aren't inflated as I've seen many other 370z's pull on these dynos also. I'm not going to argue, the thread is fun but silly really because dynos are a tool for before and after adjustments, not bragging rights.

Well that's what I like about dynojet at least. If all done SAE in the same gear they are pretty damn close across the country. Swap your manifold for my LTH and we put the same thing down untuned. Not looking forward to just 7 hp though for a $450 tune.

A tune is not about HP gains, it is about keeping the engine safe.

Not to mention that the gains in the mid-range are much larger than the few peak hp you'll pick up. My buddy picked up a lot of power between 3k-5k rpm but only 5 or so hp at peak. Not to mention another couple of miles per gallon.

Pssshhh....who cares about MPG.

Not many do, but it does show how rich these things run from the factory.

Me.

Me

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Gaining gas mileage is a great way to rationalize the cost of the tune. ;)

Mines really safe! Low 12's-high 11 AFR and 23-25 degrees of timing.

Hope so but she's already in the 12's AFR mid range so we'll see what timing can do there. I'm not optimistic about the mid range, maybe 10 if I'm lucky. I should pick up more hp up top since I drop to 11.9 at about 6000 rpm I think which is way to rich. Mpg would be nice. All highway I'm just shy of 500 miles to a tank :happydance:

Made 306/253 on a dynojet.
FI exhaust
Art pipes
Stillen G3's
Stillen UD pulley

I'll post my graph tomorrow.

Diff dynos, dynoje5 vs mustang, blah, blah. Everyone 5hat dynos your car pls take it to a local dragstrip and run the 1/8 or quarter for comparison. Least with those times and some density altitude adjustments things can be compared unless u got bald tires....my car has been dynod at 3 shops (two dynojets and 1 dyno dynamics I think). Anyway just between the two dynojets there was 20 whp difference so imo all this dyno blbber for comparing different cars or bragging rights is uh, retarded.

Cuss me, hate me, don't care...

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Anyone else understand that?

Say what? :icon14:

Well just went to the dyno Saturday and made 300 WHP 233 wtrq 7spd auto
Untuned X coupe .
Mods FI RHFC'S
Takeda longtubes
Exoticspeed cat back .

306.7 SAE WHP
253.2 SAE Ft/Lbs Torque

Mods
-Stillen G3 Intakes
-Z1 PCV breather hoses
-Stillen UD pulley and belt
-Motordyne ART Pipes
-Fast Intentions SS TDX CBE w/12" resonators
-NGK Iridium Spark plugs

I thinking on buy soon some upgrades to my Z at the moment i want this upgreades:

1- Stillen Gen3 CAI
2- Invidia Gemini CBE
3- Some headers
4- Tune

I put some headers cause i dont know what are the best. I read that Stillen dont work... what headers do you guys recomend me to buy???? that the mod list that i want for the moment. Im going to be more than happy with 300whp for now:) In the future im going to buy the GTM Turbo Kit ;)

Any recomendations are welcome :)
Thanks!!!

Z1motorsports/momentum headers with test pipes are making the highest gains as of now. so those would be on my list... the G3s seem to be making the most power intake wise. CBE is probably motordyne or FI hp wise

if your going with a turbo kit, forget the intakes and save that 500$ toward the turbo kit, same with the headers ($800) thats a good chucnk toward your turbo kit right there. both Motordyne and FI CBE are making 300+ without any other mods. so choose one of those and your "ill be happy with 300" will be met, and save the rest for FI. maybe some K&N drop-ins and post maf tubes will help you peak that as well and is only ~$200 vs 500+ for stillen G3. Good luck hope this helps. :tup:

My friend thanks a lot for your recommendations really helps ;) well im going to start searching where to buy that CBE :) well I think that im going to do that and maybe i think im going to buy the headers cause i think that the GTM Turbo kit have to wait maybe 2 years because im planing to get married and i have to buy a house too looool!!!!:icon14: let see what happen bro!! Thanks a lot!!!

The best long tubes are PPE's. A lot of race teams had these exact same headers. I've written a lot in the past about them if you want to do some searching. The Z1 (Momentums) are the only shorty headers that are worth spending money on. If you plan on going turbo, and stay under 550whp, don't worry about trying to buy a dual 3" exhaust. While it is true Motordyne and Fast Intentions have seen the highest gains, we are talking a few hp difference compared to others. Remember that turbos will act as mufflers too so don't be afraid to go aggressive. With the headers though, if you do get Fast Intentions, opt for the 12" at a minimum if you don't want rasp. The Motordyne exhaust should be good. be aware that header will change the pitch of your exhaust to something higher. It will SCREAM. Shovelman has vids with PPEs and fast intentions with no resonators. I have mine mated to a Tanabe exhaust and a HFC in the Y pipe. You'll notice even with completely different exhausts, you can hear similarities because we run the same headers.

The intakes imo, again they are within a few hp of eachother, especially after everything is tuned. I personally like the AAM intake design. They have a sleeve you can insert or remove to adjust the pipe size at the MAF. Once you go to get the car tuned, just remove the sleeve. As mentioned above the Stillens actually have a good rep for their intakes.

I have vids and dynos in my journal. Some newer vids are in the last few pages. Best of luck, it's like Russian roulette when trying to figure out what your exhaust will sound like when you add headers.


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Thanks a lot again bro!!! you are help me a lot in this thread and the Forced Induction Thread ;) well im going to check out those parts... the only thing that i know for now is that im going to build my car first in N/A and in the future im going with a Turbo kit hahaha!! if i win the lottery of course im going turbo for sure hahaa!!! For now i want some power ;)

Thanks guys or the help!!!

There was a post on Zatlantas facebook. A nismo made 357whp with e85 and 346 on pump. Apparently Z1 and TSM is starting to put GTR injectors and a fuel pump.