Stillen HFC vs. BERK HFC

Minicobra1 · 04-12-2009, 11:54 PM

Quote:

Originally Posted by ssqpolo

i highly doubt there will be a difference in the two. either way, this is a great mod with excellent gains. i guess its also cool to say u have a full Stillen bolt on tho. I mean, u guys were on point with this car. everybodys buying ur stuff!!

Yeah, I would love to see dyno results on a 370z, there website is claiming 9hp gain, but is that for the 350z??

Others on here have been getting "almost" double with the Berks

Jimmydean · 04-12-2009, 11:56 PM

Its seems that the Berks have a built in CEL fix on their HFCs. Id be curious to see if the stillens throw a CEL......

Minicobra1 · 04-13-2009, 03:00 AM

Quote:

Originally Posted by Jimmydean

Its seems that the Berks have a built in CEL fix on their HFCs. Id be curious to see if the stillens throw a CEL......

Kyle,

so what is the scoop on these, any dyno data with the 370z, CEL issues??
the Berks are showing a lot more then 9hp gains, is the data on your site for the 350z??

Also, what about a group buy? I'm looking to get something this next week, almost ordered the Berks about an hour ago, they are offered at a better price.

travisjb · 04-13-2009, 12:29 AM

will have to let stillen speak for themselves, but josh told me the hfcs will not throw a cel

NIZMOZ · 04-13-2009, 10:32 AM

Quote:

Originally Posted by travisjb

will have to let stillen speak for themselves, but josh told me the hfcs will not throw a cel

They will guaranteed.

spiderman · 04-13-2009, 04:12 PM

My car should be delivered in about 2 weeks. I was thinking of putting on the Stillen Catback along with the Stillen G3 CAI's. I'm looking more for sound versus a bump in performance (although that's great too). Is adding the Berk HFC's really needed or will the Catback itself do a nice job in getting better sound? thanks!

semtex · 04-13-2009, 04:51 PM

Quote:

Originally Posted by spiderman

My car should be delivered in about 2 weeks. I was thinking of putting on the Stillen Catback along with the Stillen G3 CAI's. I'm looking more for sound versus a bump in performance (although that's great too). Is adding the Berk HFC's really needed or will the Catback itself do a nice job in getting better sound? thanks!

The catback itself will give you a much deeper sound.

sensi09 · 04-13-2009, 01:27 AM

I'd go with the cheaper one. Both are quality parts from good companies, so can't really go wrong.

For no reason really, I'd go with the berks.

SOLISIMO · 04-13-2009, 06:15 AM

Arent all HFC's manufactured in the same factory just stamped differently?

tranceformer · 04-13-2009, 06:34 AM

Quote:

Originally Posted by SOLISIMO

Arent all HFC's manufactured in the same factory just stamped differently?

I know magnaflow makes the cores and some shops pick those up and fab up the rest. From there is what each shop does is what makes a difference. It's all about the details.

SOLISIMO · 04-13-2009, 06:39 AM

Quote:

Originally Posted by tranceformer

I know magnaflow makes the cores and some shops pick those up and fab up the rest. From there is what each shop does is what makes a difference. It's all about the details.

correct but the core is where the air flows through making them all the same. Small changes here and there might yield +1 or +2 more HP which for the price increase on name brands isnt just worth it, to me atleast

Im currently running Ichiba test pipes which I paid $250 for on my G37. I wrapped them in header wrapped which eliminated all the rasp and have no CEL light either and their quality was pretty damn impresive

Minicobra1 · 04-13-2009, 09:01 AM

Quote:

Originally Posted by SOLISIMO

correct but the core is where the air flows through making them all the same. Small changes here and there might yield +1 or +2 more HP which for the price increase on name brands isnt just worth it, to me atleast

Im currently running Ichiba test pipes which I paid $250 for on my G37. I wrapped them in header wrapped which eliminated all the rasp and have no CEL light either and their quality was pretty damn impresive

Do the Berks have any rasp too them?? if so, will wrapping them help as well?

SOLISIMO · 04-13-2009, 09:06 AM

Quote:

Originally Posted by Minicobra1

Do the Berks have any rasp too them?? if so, will wrapping them help as well?

It wouldnt be fair for to say yes or no bc I dont know. Do a search under my name and you can have an idea of what my exhaust sounds like with the vid

tranceformer · 04-13-2009, 09:02 AM

Quote:

Originally Posted by SOLISIMO

correct but the core is where the air flows through making them all the same. Small changes here and there might yield +1 or +2 more HP which for the price increase on name brands isnt just worth it, to me atleast

Yes, that's correct but what I meant was the quality of the part and not the power output. I've seen some crappy parts, I've seen some nice stuff too.

semtex · 04-13-2009, 08:01 AM

If you compare the photos of the two carefully, it appears that the Berks have two things that the Stillens don't. First, the port for the O2 sensors on the Berks are extended out to make them more resistant to throwing CELs. Secondly, notice that the Berks have a second set of O2 sensor ports built in for hooking up wide-band O2 sensors on a dyno, whereas the Stillens do not. Just making a couple of observations.

Edit: They also appear to yield less gain and are significantly more expensive than Berk. (Sorry Stillen/Josh/Kyle -- you know I love you guys but I have to call it the way I see it.)

04-13-2009, 04:12 PM	#6 (permalink)
spiderman Base Member Join Date: Feb 2009 Location: Ellicott City, MD Posts: 57 Drives: PG Touring/Sport/6M Rep Power: 269	My car should be delivered in about 2 weeks. I was thinking of putting on the Stillen Catback along with the Stillen G3 CAI's. I'm looking more for sound versus a bump in performance (although that's great too). Is adding the Berk HFC's really needed or will the Catback itself do a nice job in getting better sound? thanks! __________________ *grateful to be alive ... grateful to drive!*

04-13-2009, 08:01 AM	#15 (permalink)
semtex A True Z Fanatic Join Date: Jan 2009 Location: Behind enemy lines Age: 54 Posts: 5,995 Drives: People to drink Rep Power: 33	If you compare the photos of the two carefully, it appears that the Berks have two things that the Stillens don't. First, the port for the O2 sensors on the Berks are extended out to make them more resistant to throwing CELs. Secondly, notice that the Berks have a second set of O2 sensor ports built in for hooking up wide-band O2 sensors on a dyno, whereas the Stillens do not. Just making a couple of observations. Edit: They also appear to yield less gain and are significantly more expensive than Berk. (Sorry Stillen/Josh/Kyle -- you know I love you guys but I have to call it the way I see it.) __________________ "There are no small accidents on this circuit." -- Ayrton Senna 316.8whp & 248 ft/lbs (Dyno Dynamics) \| 319whp & 256 ft/lbs (DynoJet) (04/23/10) Stillen G3 CAI, CBE, Pulley / F.I. LTH / GTSpec Ladder Brace / Setrab Oil Cooler / UpRev-tuned by Forged Perf. Last edited by semtex; 04-13-2009 at 08:07 AM.

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04-12-2009, 11:56 PM	#2 (permalink)
Jimmydean Base Member Join Date: Jan 2009 Location: Phoenix, AZ Posts: 12 Drives: 05 Subaru STI Rep Power: 17	Its seems that the Berks have a built in CEL fix on their HFCs. Id be curious to see if the stillens throw a CEL......

04-13-2009, 12:29 AM	#4 (permalink)
travisjb A True Z Fanatic Join Date: Jan 2009 Location: GSO Posts: 2,803 Drives: VIR Rep Power: 189	will have to let stillen speak for themselves, but josh told me the hfcs will not throw a cel

04-13-2009, 01:27 AM	#8 (permalink)
sensi09 Enthusiast Member Join Date: Dec 2008 Location: so cal Posts: 449 Drives: _ Rep Power: 17	I'd go with the cheaper one. Both are quality parts from good companies, so can't really go wrong. For no reason really, I'd go with the berks.

04-13-2009, 06:15 AM	#9 (permalink)
SOLISIMO Track Member Join Date: Apr 2009 Location: Florida Posts: 510 Drives: TOP SECRET G37S Rep Power: 17	Arent all HFC's manufactured in the same factory just stamped differently?