Best Headers-HFC combo?

daleks · 06-02-2010, 03:32 PM

Option 2 gets you most of the way there (HP gains, weight savings) for far less money. HFC's are also more readily available (long tube headers have a waiting list) and are an easier install. I went with this option and may upgrade to Option 1 over time if I decide to eek every last HP and foot pound of torque out of the car.

Knives · 06-02-2010, 03:34 PM

Hey RCZ, I was wondering if you knew what the Stillen HFC's gave you power-wise. And if you got any CEL's?

Debating Stillen, ERZ and Berk.

theDreamer · 06-02-2010, 03:36 PM

Quote:

Originally Posted by RCZ

Headers in general don't really do much on the 370z. I didnt particularly think the sound from the FI headers is any different than without it either. If anything its raspier since you are removing the cats. If I were you I'd put that money somewhere else...like the rest of the exhaust or an intake.

Just got my headers on yesterday, and I can hear the rasp clearly, still only driven maybe 20 miles or so but it is there to stay I think.
I think HFC is probably the "best" solution for almost every just because it is easier and emissions safe plus you get almost all the same gains.

red6spd · 06-02-2010, 05:16 PM

OK so I asked this question before on another exhaust thread. Will test pipes net you the same gains and FI LTH??????? FI is getting my money no matter what, but I dont want to spend more money if I dont have to. Or will LTH and a CBE net more then TP and a CBE?????????

Knives · 06-02-2010, 09:25 PM

Quote:

Originally Posted by red6spd

OK so I asked this question before on another exhaust thread. Will test pipes net you the same gains and FI LTH??????? FI is getting my money no matter what, but I dont want to spend more money if I dont have to. Or will LTH and a CBE net more then TP and a CBE?????????

According to Tony's dyno runs on the F.I. threads, the FI exhaust + test pipes will give you around 308 hp. FI exhaust + LTH will give you around 311. So, it seems to net you around 3hp topend.
Again, they weren't run during the same time period, so the conditions aren't exactly the same, but take it as you will.

A/F seems to be comparable.

06-02-2010, 03:34 PM	#17 (permalink)
Knives Enthusiast Member Join Date: May 2009 Location: New York Posts: 293 Drives: 2009 370z 6MT Rep Power: 16	Hey RCZ, I was wondering if you knew what the Stillen HFC's gave you power-wise. And if you got any CEL's? Debating Stillen, ERZ and Berk. __________________ Mods list and pics Click

06-02-2010, 05:16 PM	#19 (permalink)
red6spd A True Z Fanatic Join Date: Apr 2010 Location: Long Island NY Posts: 3,277 Drives: 2010 Z Coupe M6 SPT Rep Power: 21	OK so I asked this question before on another exhaust thread. Will test pipes net you the same gains and FI LTH??????? FI is getting my money no matter what, but I dont want to spend more money if I dont have to. Or will LTH and a CBE net more then TP and a CBE????????? __________________ 2010 Base+Sport 6spd: Stillen G3, FI Non-Resonated CBE, FI Non-Resonated Test Pipes, UpRev Tuned, Custom 24R Oil Cooler, JDM Rear Fog-OEM Harness. ???Whp ???WTQ (Will find out come spring time)

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06-02-2010, 03:32 PM	#16 (permalink)
daleks Enthusiast Member Join Date: Apr 2010 Location: St. Louis Posts: 424 Drives: 2011 Evo X MR Rep Power: 15	Option 2 gets you most of the way there (HP gains, weight savings) for far less money. HFC's are also more readily available (long tube headers have a waiting list) and are an easier install. I went with this option and may upgrade to Option 1 over time if I decide to eek every last HP and foot pound of torque out of the car.