Who makes the best HFC's without rasp?

m4a1mustang · 02-08-2010, 01:16 PM

Quote:

Originally Posted by SophiaZ

Thanks, Tony for all that information! But which would be better as far as the deep tone: the res. HFC or the regular HFC? I want to cut down on the hiss but I'd like a nice deep tone too if that's possible. If there isn't a way to do that than maybe I'll just deal with that hiss.

The FI CBE will take care of that. It's the deepest there is, even with HFCs or Test Pipes... it's nuts.

Do a search for a post by forum member "Valentino". He has some high speed pass clips with his FI test pipes and 18" CBE... it sounds so wicked!!!

F.I. Inc. · 02-08-2010, 01:24 PM

Quote:

Originally Posted by SophiaZ

Thanks, Tony for all that information! But which would be better as far as the deep tone: the res. HFC or the regular HFC? I want to cut down on the hiss but I'd like a nice deep tone too if that's possible. If there isn't a way to do that than maybe I'll just deal with that hiss.

The Res HFC's are deeper and smoother. It is the resonator itself that attributes to most of that.

Zsteve · 02-08-2010, 12:03 PM

berk and stillen are 300 cell counts too? I thought they were 200 cell counts.

SophiaZ · 02-08-2010, 01:45 PM

Thanks guys!!!! Now that I know I'm going for the res HFC's and CBE..now I just gotta sell my stock exhaust and the Nismo S-tune exhaust with Stillen HFC's. If yall know of anyone who's looking for either, let me know.

SophiaZ · 02-08-2010, 01:54 PM

Also..for the res HFC, placing my order for them it says pick one Extra O2 bung: passenger, driver, or both pipes. What are these 02 bungs?

F.I. Inc. · 02-08-2010, 01:58 PM

Quote:

Originally Posted by SophiaZ

Also..for the res HFC, placing my order for them it says pick one Extra O2 bung: passenger, driver, or both pipes. What are these 02 bungs?

Passenger side first, to the best of my knowledge it runs leaner of the two banks on this car. However, when in doubt run two.

m4a1mustang · 02-08-2010, 02:05 PM

Sophia you are going to LOVE the sound!

Red370 · 02-08-2010, 02:28 PM

speaking of cats, i got a CEL a bit ago thats been off and on intermittent, I'm going to try the steel wool trick and see if that works, how much of it should I use? should I pack in as much as possible, or just a pinch or two?

NYBladeZ · 02-08-2010, 02:45 PM

Bought GTM test pipes off a forum member, had the L stem for the sensor, great sound no cel, but you will get a smell in the cabin. I think the rasp is primarily caused from a 2.5 HFC/TP going into a less than 2.5" y-pipe.

SophiaZ · 02-08-2010, 04:07 PM

So it won't hurt to get both 02 bungs? I should just get them to be safe I guess

NYBladeZ · 02-08-2010, 06:01 PM

Quote:

Originally Posted by SophiaZ

So it won't hurt to get both 02 bungs? I should just get them to be safe I guess

Nah won't hurt, I just didn't think they were necessary though if I throw a CEL i'll rescind this statement.

CrownR426 · 02-08-2010, 04:13 PM

I make the best HFC's without rasp!

Zoom370z · 02-14-2016, 12:23 PM

Has anyone heard the erz or berks or fast intentions hfc's in person? I'm looking for something deep and very loud and I don't care about the rasp.

Zoom370z · 02-14-2016, 12:44 PM

Hey rasp is kinda good ! Lol hey sophia we are on the same boat ... I'm also looking for a hfc's but I want mine loud lol

02-08-2010, 12:03 PM	#3 (permalink)
Zsteve A True Z Fanatic Join Date: Sep 2009 Location: TX Posts: 3,298 Drives: the 2 balled club Rep Power: 22	berk and stillen are 300 cell counts too? I thought they were 200 cell counts. __________________ 2010 LS3 C6 Silver coupe corvette

02-08-2010, 02:05 PM	#7 (permalink)
m4a1mustang A True Z Fanatic Join Date: Feb 2009 Location: Northern VA Posts: 55,385 Drives: on two wheels Rep Power: 6963	Sophia you are going to LOVE the sound! __________________ - Steve Zs & Coffee - Saturdays at 10AM in Fairfax, VA and Columbia, MD (Click the banner!) LIKE us on Facebook!

02-08-2010, 02:28 PM	#8 (permalink)
Red370 A True Z Fanatic Join Date: Jul 2009 Location: Kaiserslautern, Germany Posts: 4,391 Drives: your mom to church Rep Power: 297	speaking of cats, i got a CEL a bit ago thats been off and on intermittent, I'm going to try the steel wool trick and see if that works, how much of it should I use? should I pack in as much as possible, or just a pinch or two? __________________ 2011 Mustang 5.0 \| 3.55's \| Lethal Performance off road H-Pipe \| Magnaflow Muffler Delete \| JLT CAI/Bama tuned 417whp/ 404 ft/lbs

02-08-2010, 02:45 PM	#9 (permalink)
NYBladeZ A True Z Fanatic Join Date: Apr 2009 Location: New York Posts: 2,158 Drives: Lotus Exige S Rep Power: 21	Bought GTM test pipes off a forum member, had the L stem for the sensor, great sound no cel, but you will get a smell in the cabin. I think the rasp is primarily caused from a 2.5 HFC/TP going into a less than 2.5" y-pipe. __________________ 2009 Carbon Fiber/Red 370z aka Trish: Sports Package, Meisterschaft full catback, Fast Intentions Longtube Headers, Injen Long Tube Intakes, UpRev Tune: Sold 2008 Lotus Exige S Club Racer aka Bella, always leaves me smiling

02-08-2010, 04:13 PM	#12 (permalink)
CrownR426 A True Z Fanatic Join Date: Nov 2008 Location: South Korea Posts: 4,676 Drives: Manual Rep Power: 848	I make the best HFC's without rasp! __________________ Love + Hardwork + Passion RIP SVTRacer

02-08-2010, 01:45 PM	#4 (permalink)
SophiaZ A True Z Fanatic Join Date: Dec 2009 Location: South Jersey Posts: 1,466 Drives: 2020 50th anniv 7AT Rep Power: 6733	Thanks guys!!!! Now that I know I'm going for the res HFC's and CBE..now I just gotta sell my stock exhaust and the Nismo S-tune exhaust with Stillen HFC's. If yall know of anyone who's looking for either, let me know.

02-08-2010, 01:54 PM	#5 (permalink)
SophiaZ A True Z Fanatic Join Date: Dec 2009 Location: South Jersey Posts: 1,466 Drives: 2020 50th anniv 7AT Rep Power: 6733	Also..for the res HFC, placing my order for them it says pick one Extra O2 bung: passenger, driver, or both pipes. What are these 02 bungs?

02-08-2010, 04:07 PM	#10 (permalink)
SophiaZ A True Z Fanatic Join Date: Dec 2009 Location: South Jersey Posts: 1,466 Drives: 2020 50th anniv 7AT Rep Power: 6733	So it won't hurt to get both 02 bungs? I should just get them to be safe I guess

02-14-2016, 12:23 PM	#13 (permalink)
Zoom370z Enthusiast Member Join Date: May 2014 Location: Lincoln ca Posts: 308 Drives: 2011 370z auto 7 Rep Power: 12	Has anyone heard the erz or berks or fast intentions hfc's in person? I'm looking for something deep and very loud and I don't care about the rasp.

02-14-2016, 12:44 PM	#14 (permalink)
Zoom370z Enthusiast Member Join Date: May 2014 Location: Lincoln ca Posts: 308 Drives: 2011 370z auto 7 Rep Power: 12	Hey rasp is kinda good ! Lol hey sophia we are on the same boat ... I'm also looking for a hfc's but I want mine loud lol

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