test pipe VS High Flo - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

lbroskee · 12-01-2012, 04:24 PM

my FR-S is my daily driver and im working on my exhaust. would it be a bad idea to get a test pipe and get rid of my cat(MPG and reliability)?

JoeBoxer · 12-01-2012, 04:29 PM

Shouldn't effect reliability if anything you are replacing a cat that can fail over time, they are covered for 8 years or 80k miles though. MPG i couldn't tell you i don't keep track of it but doesn't seem any worse.

FreshFRS · 12-01-2012, 04:32 PM

A HFC isnt going to reduce performance too much and a test pipe shouldn't hurt mpg or reliability but definitely get an over-pipe with it, you'll see far bigger gains. it up to what you want and how strict the laws are where you are. i ran catless for years in my s2k in canada and no-one cared but i cant say the same for south florida. IMHO get a Catted pipe will help to quiet an exhaust a little bit. maybe reduce drone as well

JoeBoxer · 12-01-2012, 04:35 PM

As far as the drone or raspiness issue i will say that you either need to keep the cat or get a resonated exhaust(one exception may be the Perrin un-resonated but no personal experience). No cat and no resonator is definitely going to be the loudest besides muffler deletes.

Turbowned · 12-01-2012, 04:42 PM

Keep your cats, go hi-flow, don't be that guy. I'm sure Florida has enough pollution as it is

lbroskee · 12-01-2012, 04:56 PM

ya i got an isis fatback with non resonated so ill prolly go HFC since i dont wanna be that guy with the overly loud exhaust. thanks guys

Superhatch · 12-01-2012, 05:16 PM

The amount of pollution and particulate that cats keep out of the air is rather amazing. Driving w/o them is also usually a pretty hefty fine.

I vote high-flow.

TyperRspec789 · 12-01-2012, 05:27 PM

I run a Motiv HFC with Perrin non-resonated... Sound level is perfect in my opinion- not too loud and not too quiet. I went HFC because when I go non-catted headers, I don't want to be "that guy" with the lawn-mower smelling car with yellow discoloration on his bumper. Always keep that idea in mind that you may turbo the car later down the road...

Sportsguy83 · 12-01-2012, 05:32 PM

To further cement your selection, Nameless tested their exhaust with no Cat vs. HFC, and they made the same amount of HP.

Zadkiel · 12-01-2012, 05:35 PM

Quote:

Originally Posted by JoeBoxer

Shouldn't effect reliability if anything you are replacing a cat that can fail over time, they are covered for 8 years or 80k miles though. MPG i couldn't tell you i don't keep track of it but doesn't seem any worse.

Affect, not effect. Sorry, pet peeve. Like when someone uses irony when the really mean coincidence.

cruzinbill · 12-01-2012, 09:12 PM

HF or Test Pipe isnt gonna have a difference in HP till the 500+ range. Its just not that big of an engine to make a difference at near stock levels.

ngabdala · 12-03-2012, 02:48 PM

I believe the OP lives in Florida. I'm not sure they care about how loud an exhaust is there

JoeBoxer · 12-03-2012, 03:10 PM

Quote:

Originally Posted by ngabdala

I believe the OP lives in Florida. I'm not sure they care about how loud an exhaust is there

They are like here you can run about anything in Florida.

lbroskee · 12-03-2012, 04:21 PM

ya, pretty much. i just live around alot of old people....they do care. Plus, who of us really wants to be as annoying as the obnoxious honda kids?

12-01-2012, 05:16 PM	#7
Superhatch AIM4APX Join Date: Jun 2012 Drives: 2013 WRB BRZ Limited Location: Milwaukee Posts: 1,206 Thanks: 642 Thanked 749 Times in 324 Posts Mentioned: 8 Post(s) Tagged: 0 Thread(s)	The amount of pollution and particulate that cats keep out of the air is rather amazing. Driving w/o them is also usually a pretty hefty fine. I vote high-flow. __________________ "It's very difficult to present technology as an overtly positive sales device to people who want an emotional car" -Chris Harris

12-01-2012, 05:27 PM	#8
TyperRspec789 Version 2 Coming Soon... Join Date: Jul 2012 Drives: Turbo Argento FRS, Asphalt FRS Location: Nottingham, MD Posts: 677 Thanks: 124 Thanked 355 Times in 214 Posts Mentioned: 30 Post(s) Tagged: 1 Thread(s)	I run a Motiv HFC with Perrin non-resonated... Sound level is perfect in my opinion- not too loud and not too quiet. I went HFC because when I go non-catted headers, I don't want to be "that guy" with the lawn-mower smelling car with yellow discoloration on his bumper. Always keep that idea in mind that you may turbo the car later down the road... __________________ Part Out Thread: http://www.ft86club.com/forums/showthread.php?t=39992

12-03-2012, 02:48 PM	#12
ngabdala Vortech Supercharged Join Date: Apr 2012 Drives: WRB BRZ 6MT LTD Location: Massachusetts Posts: 1,447 Thanks: 1,897 Thanked 467 Times in 283 Posts Mentioned: 14 Post(s) Tagged: 1 Thread(s)	I believe the OP lives in Florida. I'm not sure they care about how loud an exhaust is there __________________ Powered by Vortech, ECS Tuning, and JDL Auto Design

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Motiv Concepts Test Pipe!	86design	Engine, Exhaust, Transmission	42	05-14-2014 12:18 AM
Berk Technology Test Pipe - Review	jeebus	Engine, Exhaust, Transmission	23	03-31-2014 11:01 PM
FR-S/BRZ Agency Power CatBack Exhaust and test pipe	10k Redline	Engine, Exhaust, Bolt-Ons	18	10-23-2012 04:11 AM
Combination between Greddy Sp Elite and Test Pipe	Quincy	Engine, Exhaust, Transmission	1	10-22-2012 03:57 AM
Resonated test pipe?	track_warrior	Engine, Exhaust, Transmission	3	07-30-2012 12:22 PM

12-01-2012, 04:29 PM	#2
JoeBoxer Senior Member Join Date: Jul 2012 Drives: Whiteout FR-S Location: Arkansas Posts: 4,154 Thanks: 1,666 Thanked 1,627 Times in 997 Posts Mentioned: 72 Post(s) Tagged: 0 Thread(s)	Shouldn't effect reliability if anything you are replacing a cat that can fail over time, they are covered for 8 years or 80k miles though. MPG i couldn't tell you i don't keep track of it but doesn't seem any worse.

12-01-2012, 04:35 PM	#4
JoeBoxer Senior Member Join Date: Jul 2012 Drives: Whiteout FR-S Location: Arkansas Posts: 4,154 Thanks: 1,666 Thanked 1,627 Times in 997 Posts Mentioned: 72 Post(s) Tagged: 0 Thread(s)	As far as the drone or raspiness issue i will say that you either need to keep the cat or get a resonated exhaust(one exception may be the Perrin un-resonated but no personal experience). No cat and no resonator is definitely going to be the loudest besides muffler deletes.

User Name		Remember Me?
Password