Test Pipes or HFC?

GingaBreadMan · 07-13-2009, 09:03 AM

What's the difference between Test Pipes and HFC? Which is bedda 4 performance? I'm looking 2 get the most power as possibe while still having the car reliable. My apologizes if this has already been posted and my lack of knowledge on this subject.

tranceformer · 07-13-2009, 09:15 AM

There is not much of a noticeable performance difference between the two. Some might say they lose some lowend torque with the testpipes. Test pipes will be cheaper, but comes at the price of sound (rasp/loudness), smell, stains on the rear bumper. HFC's will have just about as much gains, while not being as loud or having the rear bumper stains. However they will cost more. And it seems that with some cars, the cores in the HFC's will deteriorate and need replacement.

LiquidZ · 07-13-2009, 09:37 AM

Make sure you understand the emissions requirements for where you live. Some states don't require it while others do. Strict emissions requirements might make owning test pipes a hassle.

One_Quick_Z · 07-13-2009, 09:39 AM

Test Pipes if you dont get checked for emisions

I know when I had them on my 350Z they sounded great with the boral exhaust I had

DAN

westpak · 07-13-2009, 09:46 AM

if there is no concern with emissions tests then as mentioned might as well go with test pipes. If sound is a concern then I would opt for resonated test pipes, that would my preference to avoid possibility of unwanted rasp.

sidewayz34 · 07-13-2009, 10:06 AM

If emissions is not an issue, then get testpipes. They are well worth it over the HFC's.

DannyGT · 07-13-2009, 10:14 AM

Neither, resonated test pipes.

07-13-2009, 09:03 AM	#1 (permalink)
GingaBreadMan Enthusiast Member Join Date: Jun 2009 Location: New York Posts: 313 Drives: 09 370z Sport 6spd Rep Power: 15	Test Pipes or HFC? What's the difference between Test Pipes and HFC? Which is bedda 4 performance? I'm looking 2 get the most power as possibe while still having the car reliable. My apologizes if this has already been posted and my lack of knowledge on this subject.

07-13-2009, 09:15 AM	#2 (permalink)
tranceformer A True Z Fanatic Join Date: Nov 2008 Location: Palm Beach, FL Posts: 1,213 Drives: 2009 370Z PW 6MT Rep Power: 267	There is not much of a noticeable performance difference between the two. Some might say they lose some lowend torque with the testpipes. Test pipes will be cheaper, but comes at the price of sound (rasp/loudness), smell, stains on the rear bumper. HFC's will have just about as much gains, while not being as loud or having the rear bumper stains. However they will cost more. And it seems that with some cars, the cores in the HFC's will deteriorate and need replacement. __________________ Ray 2009 370Z Base Sport 6MT / 12.860 @ 109.09mph / 1.921 60ft / street tires official 1/4 mile track times

07-13-2009, 09:37 AM	#3 (permalink)
LiquidZ A True Z Fanatic Join Date: Nov 2008 Location: Columbus, OH Posts: 1,940 Drives: Mag. Black 2009 370Z Rep Power: 704	Make sure you understand the emissions requirements for where you live. Some states don't require it while others do. Strict emissions requirements might make owning test pipes a hassle. __________________

07-13-2009, 09:39 AM	#4 (permalink)
One_Quick_Z A True Z Fanatic Join Date: May 2009 Location: Seneca Il Posts: 1,374 Drives: 10 Civic EX Sedan Rep Power: 218	Test Pipes if you dont get checked for emisions I know when I had them on my 350Z they sounded great with the boral exhaust I had DAN __________________ -My BRZ with exhaust will decimate all if we overnight parts from Japan- 10 Civic EX Sedan- Current Daily

07-13-2009, 09:46 AM	#5 (permalink)
westpak Enthusiast Member Join Date: Mar 2009 Location: Lake Worth, FL Posts: 405 Drives: 2003 350Z DB Rep Power: 16	if there is no concern with emissions tests then as mentioned might as well go with test pipes. If sound is a concern then I would opt for resonated test pipes, that would my preference to avoid possibility of unwanted rasp. __________________ 03 350Z 587 RWHP - May 2009 Dsport Feature

07-13-2009, 10:06 AM	#6 (permalink)
sidewayz34 Base Member Join Date: Jul 2009 Location: Engine Bay Posts: 91 Drives: 370Z 6MT Rep Power: 15	If emissions is not an issue, then get testpipes. They are well worth it over the HFC's.

07-13-2009, 10:14 AM	#7 (permalink)
DannyGT Track Member Join Date: Jan 2009 Location: Jersey Posts: 919 Drives: 370Z (SOLD) Rep Power: 279	Neither, resonated test pipes. __________________ Performance GTM Stage 1 SC, GTM Res.Test Pipes, Invidia Gemini Exhaust, GTM HD Oil Cooler Wheels & Suspension AME Tracer TM02's 19x9.5F 19x10.5R w/ 265x35F & 305x30R, Hotchkis Sways, BC (BR) Racing Coilovers (Car Sold)

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Ebay Test pipes	Anthny2040	Intake/Exhaust	8	10-27-2009 08:45 PM
test pipes or HFC	corbin09	Wanted	1	07-13-2009 01:15 PM
GTM 3" catback with test pipes	huff442	Intake/Exhaust	8	06-06-2009 01:50 PM
Resonated Test Pipes Vs HFC	Solus	Intake/Exhaust	15	06-04-2009 04:05 PM
GT Motorsports: VQ37VHR Test Pipes	George@GTM	Intake/Exhaust	29	05-06-2009 07:21 PM