Welcome to the North American Subaru Impreza Owners Club Friday March 22, 2019
Home Forums WikiNASIOC Products Store Modifications Upgrade Garage
Texas Impreza Club
Go Back   NASIOC > NASIOC Chapters > Texas Impreza Club Forum -- TXIC

Welcome to NASIOC - The world's largest online community for Subaru enthusiasts!
Welcome to the NASIOC.com Subaru forum.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, free of charge, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!

If you have any problems with the registration process or your account login, please contact us.
* Registered users of the site do not see these ads. 
Reply
 
Thread Tools Display Modes
Old 09-17-2002, 11:22 PM   #1
2003 sedan
Scooby Specialist
 
Member#: 24103
Join Date: Sep 2002
Location: Vegas....BABY!!!!!!
Default Do you have to have a muffler in Texas?

What about removing the muffler and run a short piece of pipe with a tip? Any one care to respond?
* Registered users of the site do not see these ads.
2003 sedan is offline   Reply With Quote
Sponsored Links
* Registered users of the site do not see these ads.
Old 09-17-2002, 11:24 PM   #2
ATX25RS
Scooby Guru
 
Member#: 4597
Join Date: Mar 2001
Chapter/Region: TXIC
Location: Laredo, Texas
Vehicle:
2011 Mitsu Outlander
Sport (Ex-Suby owner X3)

Default

as far as inspection and the law, i believe all that is required is a pipe exiting the rear of the vehicle, past the bumper. no muffler is required, but do remember some counties and municpalities have sound polution laws, and noise level for cars.....

Andres
ATX25RS is offline   Reply With Quote
Old 09-17-2002, 11:33 PM   #3
Sam2
Scooby Specialist
 
Member#: 15265
Join Date: Feb 2002
Location: Austin Texas
Vehicle:
2002 WRX Wagon
WR Blue

Default

Muffler is required by state law

http://www.capitol.state.tx.us/statu...#tr069.547.604
547.604. Muffler Required

(a) A motor vehicle shall be equipped with a muffler in good working condition that continually operates to prevent excessive or unusual noise.

(b) A person may not use a muffler cutout, bypass, or similar device on a motor vehicle.

Acts 1995, 74th Leg., ch. 165, 1, eff. Sept. 1, 1995.
Sam2 is offline   Reply With Quote
Old 09-17-2002, 11:35 PM   #4
2003 sedan
Scooby Specialist
 
Member#: 24103
Join Date: Sep 2002
Location: Vegas....BABY!!!!!!
Default

Can a catalitic converter be considered a muffler? It does muffle the exhaust.
2003 sedan is offline   Reply With Quote
Old 09-18-2002, 01:42 AM   #5
vizor
Scooby Newbie
 
Member#: 13851
Join Date: Jan 2002
Chapter/Region: TXIC
Location: Austin, TX
Vehicle:
2002 WRX Wagon
WRBP

Default

Quote:
Originally posted by 2003 sedan
Can a catalitic converter be considered a muffler? It does muffle the exhaust.
No it is not, and no, it does not appreciably muffle the exhaust.

Catalytic converters have a flow-through structure coated with the catalyst that breaks down exhaust gases. The shock waves pass right through this structure largely unaltered. The baffles and sized chambers in the muffler(s) are what dampen these shock waves.

An "open" exhaust is easily loud enough to significantly damage your hearing.
vizor is offline   Reply With Quote
Old 09-18-2002, 07:02 AM   #6
2003 sedan
Scooby Specialist
 
Member#: 24103
Join Date: Sep 2002
Location: Vegas....BABY!!!!!!
Default

Iunderstand the design just wanted to know if it was a loop hole in the law. Its funny how a motorcycle can have no muffler, or your local smalltown cowboy and his pickup seem to have no sound reduction not to mention the bumble bee honda sounds we endure daily. I believe a cat does muffler the noise have you ever heard a car without one and no muffler verses just a cat. Iam very familiar with the technical side of an automobile. I just wanted to know the Texas laws and/or loopholes. Thank you for the technical inputs though.
2003 sedan is offline   Reply With Quote
Old 09-18-2002, 08:22 AM   #7
Big_Hitter
Scooby Guru
 
Member#: 10831
Join Date: Oct 2001
Chapter/Region: TXIC
Location: Boise, ID
Vehicle:
1995 Firehawk #456
2009 FXT VF52/E85

Default

Zack (-dashwrx) has a straight pipe.

Ask him where he gets his car inspected.
Big_Hitter is offline   Reply With Quote
Old 09-18-2002, 08:59 AM   #8
zmw
Scooby Specialist
 
Member#: 13181
Join Date: Dec 2001
Chapter/Region: TXIC
Location: The Schlit
Vehicle:
97 Supra
FAST

Default

Someone correct me if I am wrong, but it's against FEDERAL law to change your exhaust setup from a stock system isn't it? Something like that, or it's against the law to change the cats or something, don't know the exact law off the top of my head.

-Z
zmw is offline   Reply With Quote
Old 09-18-2002, 09:15 AM   #9
p7r4e7y
Scooby Specialist
 
Member#: 4261
Join Date: Feb 2001
Chapter/Region: SCIC
Location: san diego
Vehicle:
2000 2.5 RSTI
www.ModernImage.net

Default

you cant change your cat legally until it has 60k miles on it, and in texas you are not allowed to remove(not change) exhause components that will wause excess noise.

i dont have a muffler. i have never been questioned in the 3 times ive been pulled over, the key is disguise.

p7r4e7y is offline   Reply With Quote
Old 09-18-2002, 09:21 AM   #10
Kartoffel
Scooby Specialist
 
Member#: 12976
Join Date: Dec 2001
Chapter/Region: TXIC
Location: Huntsville, Alabamy
Vehicle:
2002 WRX
grocery getter

Default

I have a straight pipe with a "fake muffler" tip kinda like Prey's. It looks decent and gets the job done.

There is at least one HPD officer who's done the same thing to his personal WRX.

If you ever get a catless downpipe you will need some kind of muffler or it will be way loud and you will shoot fireballs when you downshift. I've got a catless uppipe and stock everything else and it's not any louder than 100% stock w/ straightpipe.
Kartoffel is offline   Reply With Quote
Old 09-18-2002, 09:28 AM   #11
p7r4e7y
Scooby Specialist
 
Member#: 4261
Join Date: Feb 2001
Chapter/Region: SCIC
Location: san diego
Vehicle:
2000 2.5 RSTI
www.ModernImage.net

Default

Quote:
Originally posted by Kartoffel
... you will shoot fireballs when you downshift.
p7r4e7y is offline   Reply With Quote
Old 09-18-2002, 09:55 AM   #12
LoriAngel
Guest
 
Member#:
Default

Quote:
Originally posted by Philistine
Zack (-dashwrx) has a straight pipe.

Ask him where he gets his car inspected.
I don't think it's welded, just bolted. He will probably put the muffeler back on before he gets it inspected.

You can go to this place on Rayford Sawdust @ 45 to get anything done to you exaust fairly cheap.
  Reply With Quote
Old 09-18-2002, 11:40 AM   #13
vizor
Scooby Newbie
 
Member#: 13851
Join Date: Jan 2002
Chapter/Region: TXIC
Location: Austin, TX
Vehicle:
2002 WRX Wagon
WRBP

Default

Quote:
Originally posted by Kartoffel
I've got a catless uppipe and stock everything else and it's not any louder than 100% stock w/ straightpipe.
Hmm. Inside the car? Or outside the car, and at idle or speed?
vizor is offline   Reply With Quote
Old 09-18-2002, 11:48 AM   #14
jmott
Scooby Guru
 
Member#: 6713
Join Date: May 2001
Chapter/Region: TXIC
Location: Houston TX USA
Vehicle:
2007 Prius
brown

Default

they appreciably muffler the exauhst.

just taking off 1 hi-flow is noticeable.

and if you compare my catless car with no muffler to a stock one with no muffler.

whoa! huge difference


Quote:
Originally posted by vizor


No it is not, and no, it does not appreciably muffle the exhaust.

Catalytic converters have a flow-through structure coated with the catalyst that breaks down exhaust gases. The shock waves pass right through this structure largely unaltered. The baffles and sized chambers in the muffler(s) are what dampen these shock waves.

An "open" exhaust is easily loud enough to significantly damage your hearing.
jmott is offline   Reply With Quote
Old 09-18-2002, 11:48 AM   #15
p7r4e7y
Scooby Specialist
 
Member#: 4261
Join Date: Feb 2001
Chapter/Region: SCIC
Location: san diego
Vehicle:
2000 2.5 RSTI
www.ModernImage.net

Default

Quote:
Originally posted by vizor


Hmm. Inside the car? Or outside the car, and at idle or speed?
dont be fooled, its loud in the car w/o a muffler
p7r4e7y is offline   Reply With Quote
Old 09-18-2002, 11:57 AM   #16
vizor
Scooby Newbie
 
Member#: 13851
Join Date: Jan 2002
Chapter/Region: TXIC
Location: Austin, TX
Vehicle:
2002 WRX Wagon
WRBP

Default

Quote:
Originally posted by 2003 sedan
Its funny how a motorcycle can have no muffler, or your local smalltown cowboy and his pickup seem to have no sound reduction not to mention the bumble bee honda sounds we endure daily.
Right right. And while I don't believe those examples are within what the law says, exhaust noise-related laws simply aren't enforced. But you've noticed this.

Quote:
I believe a cat does muffler the noise have you ever heard a car without one and no muffler verses just a cat. Iam very familiar with the technical side of an automobile. I just wanted to know the Texas laws and/or loopholes. Thank you for the technical inputs though.
No real loopholes, just no enforcement of existing laws from what we see on the roads.
vizor is offline   Reply With Quote
Old 09-18-2002, 12:17 PM   #17
vizor
Scooby Newbie
 
Member#: 13851
Join Date: Jan 2002
Chapter/Region: TXIC
Location: Austin, TX
Vehicle:
2002 WRX Wagon
WRBP

Default

Quote:
Originally posted by jmott
they appreciably muffler the exauhst.

just taking off 1 hi-flow is noticeable.

and if you compare my catless car with no muffler to a stock one with no muffler.

whoa! huge difference
OK, I'll buy that.
vizor is offline   Reply With Quote
Old 09-18-2002, 12:40 PM   #18
-dashwrx
Scooby Newbie
 
Member#: 6554
Join Date: May 2001
Location: Houston TX
Vehicle:
2015 WRX

Default

Quote:
Originally posted by LoriAngel

I don't think it's welded, just bolted. He will probably put the muffeler back on before he gets it inspected.
You can go to this place on Rayford Sawdust @ 45 to get anything done to you exaust fairly cheap.
I have my stock axle back in my garage..... It will be going back on before i get inspected again.... Since it's such an easy proceedure..... don't want to have any hassle in geting inspected.... but keep in mind, you don't have to get inspected for 2 years after you get a new car... so i still have 8 months before my first inspection.

As loriangel said, The place on Rayford sawdust was great.... $60 installed with a chrome tip.

And to comment on the sound: It's great..... actually, i'm thinking of de-catting in order to increase the sound some more . I;d like to hear jmotts car without the muffler to see what i would be getting myself into.
-dashwrx is offline   Reply With Quote
Old 09-18-2002, 01:19 PM   #19
metoo
Scooby Guru
 
Member#: 4764
Join Date: Mar 2001
Chapter/Region: TXIC
Location: Houston
Vehicle:
2004 STi sold :(
forizzle

Default

Quote:
Originally posted by Sam2
Muffler is required by state law
So are you saying that the new turbocgahrger Neon SRT will be illegal to drive in Texas? I does not have a muffler.

http://www.car-truck.com/chryed/buzz/b010402.htm
metoo is offline   Reply With Quote
Old 09-18-2002, 01:28 PM   #20
jmott
Scooby Guru
 
Member#: 6713
Join Date: May 2001
Chapter/Region: TXIC
Location: Houston TX USA
Vehicle:
2007 Prius
brown

Default

Quote:
Originally posted by metoo


So are you saying that the new turbocgahrger Neon SRT will be illegal to drive in Texas? I does not have a muffler.

http://www.car-truck.com/chryed/buzz/b010402.htm
it might have a resonator or something that will pass the letter of the law.
jmott is offline   Reply With Quote
Old 09-18-2002, 03:07 PM   #21
Kartoffel
Scooby Specialist
 
Member#: 12976
Join Date: Dec 2001
Chapter/Region: TXIC
Location: Huntsville, Alabamy
Vehicle:
2002 WRX
grocery getter

Default

Quote:
Originally posted by vizor


Hmm. Inside the car? Or outside the car, and at idle or speed?
I'm comparing:

1) straight pipe, everything else on the exhaust stock

with

2) straight pipe, catless upppipe, everything else stock

There is no noticable difference in loudness inside the car. Outside, the turbo spool is more noticable and it burbles and pops more when the motor is still cold.

Adding a catless downpipe would make the car TOO loud, imho. Plus i'd rather not shoot flame at night. It might attract too much attention, nome sane?
Kartoffel is offline   Reply With Quote
Old 09-18-2002, 04:16 PM   #22
vizor
Scooby Newbie
 
Member#: 13851
Join Date: Jan 2002
Chapter/Region: TXIC
Location: Austin, TX
Vehicle:
2002 WRX Wagon
WRBP

Default

Quote:
Originally posted by Kartoffel

... It might attract too much attention, nome sane?
Ohh yeahhh.
vizor is offline   Reply With Quote
Old 09-18-2002, 11:45 PM   #23
2003 sedan
Scooby Specialist
 
Member#: 24103
Join Date: Sep 2002
Location: Vegas....BABY!!!!!!
Default

I appreciate everyones input . I don't want to remove my cat just the muffler. I had a 88 subi wagon 1.8 turbo ,lowered, 2.5 inch from the turbo back that was kinda loud with no cats. You know at certain times it sounded like a Harley. HUH
2003 sedan is offline   Reply With Quote
Old 09-18-2002, 11:46 PM   #24
2003 sedan
Scooby Specialist
 
Member#: 24103
Join Date: Sep 2002
Location: Vegas....BABY!!!!!!
Default

and 15 psi of boost with no inter cooler
2003 sedan is offline   Reply With Quote
Old 12-18-2018, 11:35 PM   #25
Gdrew52
Scooby Newbie
 
Member#: 495415
Join Date: Dec 2018
Default Turbos?

So, I know this is more of a techy question than most of yalls, but I was wondering if, because it does significantly reduce the sound of your truck/car, if you can use a rear mounted turbo as your muffler. Any thoughts?
Gdrew52 is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
where do you go to have fun in LA? skimmilk68 Off-Topic 30 01-04-2006 12:22 PM
What kind of whp do you need to put a wrx in the 11s 20024door Proven Power Bragging 21 02-05-2005 09:10 AM
Which one do you want to have in your driveway? extraducksauce Motorsports 28 11-30-2004 12:18 PM
How much do you spend to have your car tuned? norseone Engine Management & Tuning 15 04-29-2004 12:11 AM

All times are GMT -4. The time now is 02:47 AM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2019 Axivo Inc.
Copyright ©1999 - 2017, North American Subaru Impreza Owners Club, Inc.