Stock gutted fp vs aftermarket fp - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

Subie.dan · 02-19-2017, 07:07 AM

Are there any differences power and sound wise from a stock front pipe with the cat gutted out vs an aftermarket catless front pipe? About to get tuned and wondering if buying a front pipe would improve anything since mine is gutted and technically "free flowing"

Somerandom18 · 02-19-2017, 09:43 AM

Short answer is sound yes, power no.

Sent from my Pixel XL using Tapatalk

mav1178 · 02-19-2017, 12:30 PM

Aftermarket catless front pipe usually are much louder because of lack of resonators, or insufficient resonator size.

-alex

Subie.dan · 02-19-2017, 12:35 PM

Quote:

Originally Posted by mav1178

Aftermarket catless front pipe usually are much louder because of lack of resonators, or insufficient resonator size.

-alex

Are they any front pipes that are the same volume as stock but a deeper tone? My car is plenty loud right now lol

Sent from my FRD-L04 using Tapatalk

Nothingman · 02-19-2017, 02:12 PM

Quote:

Originally Posted by Subie.dan

Are they any front pipes that are the same volume as stock but a deeper tone? My car is plenty loud right now lol

Sent from my FRD-L04 using Tapatalk

JDL Ultra quiet fp, has a cat and a resonator

Subie.dan · 02-19-2017, 02:20 PM

I want to stay catless. I might try just a resonated fp then

Teseo · 02-19-2017, 03:51 PM

Quote:

Originally Posted by Nothingman

JDL Ultra quiet fp, has a cat and a resonator

I thought was catless but double reaonators

Somerandom18 · 02-19-2017, 04:15 PM

Nope, one cat one res.

Sent from my Pixel XL using Tapatalk

Varelco · 02-20-2017, 06:16 AM

JDL Ultra quiet pipe has a 200 cell cat in it as Somerandom said. HKS and Fujitsubo both make a dual resonated decatted front pipe. I have the Fujitsubo one, it makes the exhaust note of my perrin much deeper at lower RPM but doesn't add loads of volume.

guybo · 02-20-2017, 07:43 AM

This is the sound of gutted header and FP + Berk dual exit and a cherry bomb in the mid pipe

various including in-car

[ame="https://www.youtube.com/watch?v=7n3pgL9czCc"]myexhaust86 - YouTube[/ame]

start up

[ame="https://www.youtube.com/watch?v=Z_gogZ_mNH0"]goodmorningloudness - YouTube[/ame]

mav1178 · 02-20-2017, 01:13 PM

Quote:

Originally Posted by Nothingman

JDL Ultra quiet fp, has a cat and a resonator

But still louder than stock because this front pipe uses a standard 200 cell cat that is much smaller than factory.

-alex

CTO79 · 03-09-2017, 08:33 AM

Same issue on my end. I used to drive the OEM header with 200er cat, 2.5" Overpipe, OEM frontpipe with 200er cat and a 2.5" Ragazzon catback. The overall volume was too quiet. Then I installed a 2.5" Motiv catted frontpipe without resonator and the sound and volume turned great... for a while. For daily driving too much volume.
Now I have two options: going back to a OEM frontpipe and have a metal cat installed or find a very quiet catted 2.5" frontpipe which is the preferred option. the guys who sold the Motiv mentioned that there is not much difference between the Motiv and the JDL catted resonated although it is resonated.
Do you guys know a 2.5" frontpipe that is quieter than the JDL/Motiv FP's?

Khánh · 03-15-2017, 01:18 AM

Quote:

Originally Posted by Subie.dan

Are they any front pipes that are the same volume as stock but a deeper tone? My car is plenty loud right now lol

Sent from my FRD-L04 using Tapatalk

borla has overpipe/ front pipe combo.. 2.25" which is similar to stock but deleting the cat and the resonator.. I have this and everything else is stock.. it sounds the same as stock to me.. but could be different if it's combined with other aftermarket exhaust components

tyler_win_photo · 03-16-2017, 02:54 AM

Quote:

Originally Posted by CTO79

Same issue on my end. I used to drive the OEM header with 200er cat, 2.5" Overpipe, OEM frontpipe with 200er cat and a 2.5" Ragazzon catback. The overall volume was too quiet. Then I installed a 2.5" Motiv catted frontpipe without resonator and the sound and volume turned great... for a while. For daily driving too much volume.
Now I have two options: going back to a OEM frontpipe and have a metal cat installed or find a very quiet catted 2.5" frontpipe which is the preferred option. the guys who sold the Motiv mentioned that there is not much difference between the Motiv and the JDL catted resonated although it is resonated.
Do you guys know a 2.5" frontpipe that is quieter than the JDL/Motiv FP's?

You'll likely need to have a shop fabricate you one if you want one quieter than the JDL ultra quiet. It'd probably be something along the lines of a 200 cell cat and a helmholtz style resonator combo.. similar to the Nameless one.

02-19-2017, 07:07 AM	#1
Subie.dan Junior Member Join Date: Apr 2016 Drives: 2016 Subaru BRZ Limited Location: Orlando, FL Posts: 4 Thanks: 0 Thanked 1 Time in 1 Post Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Stock gutted fp vs aftermarket fp Are there any differences power and sound wise from a stock front pipe with the cat gutted out vs an aftermarket catless front pipe? About to get tuned and wondering if buying a front pipe would improve anything since mine is gutted and technically "free flowing"

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
FEELER : track FRS gutted full cage	philooo	Cars for Sale/Trade	9	05-23-2015 03:32 PM
WTB gutted stock FP w/ resonator	ramiram1984	Want-To-Buy Requests	5	10-28-2014 01:34 AM
FS: OEM FRS/BRZ Header w/ Gutted Cat	malubawla	Engine, Exhaust, Bolt-Ons	10	06-06-2014 11:29 AM
RevWorks UEL Header + Nameless Catted Front Pipe VS Stock Gutted Header + FP	NickFRS	Engine, Exhaust, Transmission	44	04-19-2014 05:42 PM
Gutted cat stock header vs aftermarket catless header NA application	stevo585	Engine, Exhaust, Transmission	8	04-04-2014 04:12 PM

02-19-2017, 09:43 AM	#2
Somerandom18 Senior Member Join Date: Sep 2016 Drives: 2017 manual BRZ Location: USA Posts: 467 Thanks: 322 Thanked 178 Times in 111 Posts Mentioned: 2 Post(s) Tagged: 0 Thread(s)	Short answer is sound yes, power no. Sent from my Pixel XL using Tapatalk

02-19-2017, 12:30 PM	#3
mav1178 Senior Member Join Date: Apr 2013 Drives: 2005 Toyota Camry Location: 91745 Posts: 6,562 Thanks: 493 Thanked 6,093 Times in 3,029 Posts Mentioned: 95 Post(s) Tagged: 3 Thread(s)	Aftermarket catless front pipe usually are much louder because of lack of resonators, or insufficient resonator size. -alex

02-19-2017, 02:20 PM	#6
Subie.dan Junior Member Join Date: Apr 2016 Drives: 2016 Subaru BRZ Limited Location: Orlando, FL Posts: 4 Thanks: 0 Thanked 1 Time in 1 Post Mentioned: 0 Post(s) Tagged: 0 Thread(s)	I want to stay catless. I might try just a resonated fp then

02-19-2017, 04:15 PM	#8
Somerandom18 Senior Member Join Date: Sep 2016 Drives: 2017 manual BRZ Location: USA Posts: 467 Thanks: 322 Thanked 178 Times in 111 Posts Mentioned: 2 Post(s) Tagged: 0 Thread(s)	Nope, one cat one res. Sent from my Pixel XL using Tapatalk

02-20-2017, 06:16 AM	#9
Varelco Senior Member Join Date: May 2015 Drives: '15 GT86 & '22 GR86 Location: Kent, UK Posts: 146 Thanks: 37 Thanked 112 Times in 51 Posts Mentioned: 3 Post(s) Tagged: 0 Thread(s)	JDL Ultra quiet pipe has a 200 cell cat in it as Somerandom said. HKS and Fujitsubo both make a dual resonated decatted front pipe. I have the Fujitsubo one, it makes the exhaust note of my perrin much deeper at lower RPM but doesn't add loads of volume.

02-20-2017, 07:43 AM	#10
guybo Huge E85 fan! Join Date: May 2016 Drives: 2016 Scion FRS Location: Tampa, FL, USA Posts: 1,850 Thanks: 539 Thanked 1,010 Times in 605 Posts Mentioned: 32 Post(s) Tagged: 0 Thread(s)	This is the sound of gutted header and FP + Berk dual exit and a cherry bomb in the mid pipe various including in-car [ame="https://www.youtube.com/watch?v=7n3pgL9czCc"]myexhaust86 - YouTube[/ame] start up [ame="https://www.youtube.com/watch?v=Z_gogZ_mNH0"]goodmorningloudness - YouTube[/ame]

03-09-2017, 08:33 AM	#12
CTO79 Member Join Date: Jun 2015 Drives: GT86 Location: GER Posts: 11 Thanks: 0 Thanked 0 Times in 0 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Same issue on my end. I used to drive the OEM header with 200er cat, 2.5" Overpipe, OEM frontpipe with 200er cat and a 2.5" Ragazzon catback. The overall volume was too quiet. Then I installed a 2.5" Motiv catted frontpipe without resonator and the sound and volume turned great... for a while. For daily driving too much volume. Now I have two options: going back to a OEM frontpipe and have a metal cat installed or find a very quiet catted 2.5" frontpipe which is the preferred option. the guys who sold the Motiv mentioned that there is not much difference between the Motiv and the JDL catted resonated although it is resonated. Do you guys know a 2.5" frontpipe that is quieter than the JDL/Motiv FP's?

User Name		Remember Me?
Password