side pipes illegal or not?
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From: Shillington Pa
Car: 1982 Trans Am
Engine: LU5 CFI
Transmission: TH-200C
side pipes illegal or not?
hi i have an 82 trans am and the factory exhaust setup on the car blows so i was wandering if it is illegal to have side pipes on a car. it may sound like a dumb question but i heard different things so i just wanted to make sure before i go ahead and do that
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Joined: Mar 2010
Posts: 466
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Car: 1989 Formula,1991 z28
Engine: 400 Vortec Hsr,496bbc
Transmission: TKO600,TH400
Axle/Gears: 9"4.10, 9"3.73
re: side pipes illegal or not?
yes they are illegal, so please for the love of god dont put hillbilly sidepipes on a thirdgen.
Thread Starter
Member
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Joined: Jun 2010
Posts: 105
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From: Shillington Pa
Car: 1982 Trans Am
Engine: LU5 CFI
Transmission: TH-200C
re: side pipes illegal or not?
well the only reason i was going to do it was because once the exhaust exits the headers and down the car to the tail before it passes the diff it goes straight up and then back down. since the side pipes are illegal then is it possible to fit a true dual set up in a car like mine without too much fabrication needs
Joined: Aug 2006
Posts: 12,807
Likes: 108
From: Central NJ
Car: 86 Trans Am
Engine: 408 stroker sbc
Transmission: TKO600
Axle/Gears: Moser full floater m9, 3:70 trutrac
re: side pipes illegal or not?
duals have been done, in fact there is a sticky at the top of the exhaust fourm page with info and pictures of dual setups
https://www.thirdgen.org/forums/exha...l-exhaust.html
Thread Starter
Member
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Joined: Jun 2010
Posts: 105
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From: Shillington Pa
Car: 1982 Trans Am
Engine: LU5 CFI
Transmission: TH-200C
re: side pipes illegal or not?
ok thanks but why are they both illegal, and how come there are cars out there with them on like the older stingrays and cobras
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Joined: Jun 2009
Posts: 55
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From: Vancouver Island BC
Car: 1987 Camaro Sport Coupe
Engine: None
Transmission: T5
Axle/Gears: 3.42
re: side pipes illegal or not?
Here are some laws for Pennsylvania.
175.75. Exhaust systems
(a) Condition of exhaust system. All components of the exhaust system shall be in safe operating condition as described in § 175.80 (relating to inspection procedure).
(b) Exhaust system requirements. A vehicle specified under this subchapter shall be constructed, equipped, maintained and operated to prevent engine exhaust gases from penetrating and collecting in any part of the vehicle occupied by the driver or a passenger, in addition to requirements of this title for an emission control system and smoke control for a diesel-powered vehicle.
(1) A vehicle specified under this subchapter shall be equipped with a muffler or other effective noise-suppressing system in good working order and in constant operation. A muffler or exhaust system may not be equipped with a cutout, bypass or similar device and a muffler may not show evidence of external repair.
(2) The exhaust system of a vehicle may not be modified in a manner which will amplify or increase noise emitted by the motor of a vehicle above the maximum level permitted by Chapter 157 (relating to established sound levels).
(3) Headers and side exhaust are permitted if the vehicle meets the requirements of this section.
(4) An exposed exhaust system shall be equipped with an adequate heat shield or protective system.
(5) An exhaust system shall extend and discharge completely to the outside edge of the vehicle body, including a truck bed, or as originally designed.
(6) A firefighting vehicle is exempt from regulations concerning exhaust systems, mufflers and noise control.
Personally, I'd ignore people like 89fbirdformula. People like that are just close-minded.....Well, I'd like to say something else, but it's not nessesary.
175.75. Exhaust systems
(a) Condition of exhaust system. All components of the exhaust system shall be in safe operating condition as described in § 175.80 (relating to inspection procedure).
(b) Exhaust system requirements. A vehicle specified under this subchapter shall be constructed, equipped, maintained and operated to prevent engine exhaust gases from penetrating and collecting in any part of the vehicle occupied by the driver or a passenger, in addition to requirements of this title for an emission control system and smoke control for a diesel-powered vehicle.
(1) A vehicle specified under this subchapter shall be equipped with a muffler or other effective noise-suppressing system in good working order and in constant operation. A muffler or exhaust system may not be equipped with a cutout, bypass or similar device and a muffler may not show evidence of external repair.
(2) The exhaust system of a vehicle may not be modified in a manner which will amplify or increase noise emitted by the motor of a vehicle above the maximum level permitted by Chapter 157 (relating to established sound levels).
(3) Headers and side exhaust are permitted if the vehicle meets the requirements of this section.
(4) An exposed exhaust system shall be equipped with an adequate heat shield or protective system.
(5) An exhaust system shall extend and discharge completely to the outside edge of the vehicle body, including a truck bed, or as originally designed.
(6) A firefighting vehicle is exempt from regulations concerning exhaust systems, mufflers and noise control.
Personally, I'd ignore people like 89fbirdformula. People like that are just close-minded.....Well, I'd like to say something else, but it's not nessesary.
Supreme Member
Joined: Oct 2001
Posts: 8,113
Likes: 6
From: NWOhioToledoArea
Car: 86-FireBird
Engine: -MPFI
Transmission: T5
Axle/Gears: 3:42
re: side pipes illegal or not?
In general they must run to the rear axle and can dump before or after it.
problem is the poisons in exhaust gasses build up in your system over time so it won't kill right away. So if your smelling anything check door seals or rust holes in the rear section.
Mine run's all the way out the back but a rust hole behind the tail lights would suck it in with the windows down.
Myself I found the 90* turn out for a side pipe on mine killed the upper RPM band and had to knock a hole in the end of the pipe so it could blow out straight and the side.
Got sick of the noise and run it out the back now, let the person behind me hear it.
problem is the poisons in exhaust gasses build up in your system over time so it won't kill right away. So if your smelling anything check door seals or rust holes in the rear section.
Mine run's all the way out the back but a rust hole behind the tail lights would suck it in with the windows down.
Myself I found the 90* turn out for a side pipe on mine killed the upper RPM band and had to knock a hole in the end of the pipe so it could blow out straight and the side.
Got sick of the noise and run it out the back now, let the person behind me hear it.
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From: Cleveland, OH
Car: 87 IROC-Z
Engine: 305 TPI
Transmission: 700R4
On Probation
Joined: Mar 2010
Posts: 466
Likes: 0
Car: 1989 Formula,1991 z28
Engine: 400 Vortec Hsr,496bbc
Transmission: TKO600,TH400
Axle/Gears: 9"4.10, 9"3.73
Member
iTrader: (1)
Joined: Oct 2007
Posts: 354
Likes: 1
From: Cleveland, OH
Car: 87 IROC-Z
Engine: 305 TPI
Transmission: 700R4
re: side pipes illegal or not?
Learn some respect. He didn't ask your opinion on if it looked good on HIS car. It is HIS car, HE can do what HE wants to it. So get lost.
On Probation
Joined: Mar 2010
Posts: 466
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Car: 1989 Formula,1991 z28
Engine: 400 Vortec Hsr,496bbc
Transmission: TKO600,TH400
Axle/Gears: 9"4.10, 9"3.73
re: side pipes illegal or not?
there is a reason there is a DUAL EXHAUST sticky, and not a "hillrod sidepipes" sticky on these forums..
I'll do my damndest to try and convince him to spend the $$ and go duals instead of sidepipes.
Having said that, you can blow me.
Member
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Joined: Oct 2007
Posts: 354
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From: Cleveland, OH
Car: 87 IROC-Z
Engine: 305 TPI
Transmission: 700R4
re: side pipes illegal or not?
What kind of jerk goes into people's threads and pisses all over them? You, I guess.
On Probation
Joined: Mar 2010
Posts: 466
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Car: 1989 Formula,1991 z28
Engine: 400 Vortec Hsr,496bbc
Transmission: TKO600,TH400
Axle/Gears: 9"4.10, 9"3.73
re: side pipes illegal or not?
im not pissing all over his thread, trying to help him from making a BAD decision.
Member
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Joined: Oct 2007
Posts: 354
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From: Cleveland, OH
Car: 87 IROC-Z
Engine: 305 TPI
Transmission: 700R4
re: side pipes illegal or not?
You are though. He wants side pipes. It is only a bad decision in YOUR opinion. If he likes it, he can do it. Just because someone had side pipes does not make them any lower than you. Maybe one day you will grow up and realize that.
On Probation
Joined: Mar 2010
Posts: 466
Likes: 0
Car: 1989 Formula,1991 z28
Engine: 400 Vortec Hsr,496bbc
Transmission: TKO600,TH400
Axle/Gears: 9"4.10, 9"3.73
re: side pipes illegal or not?
i have NEVER seen a set of sidepipes on these cars that looked anywhere near "classy" or well thought out..
dual exhaust is just the better route to go, for many reasons.
side note, if his car is as stock as his profile claims, theres really no reason for either mod, a simple catback will more then get the job done.
I like the clean and simple look, as do the majority of the members here, i am guessing he is young, with little experience with cars...showing him the grass is greener on the other side, there is no harm in that, you seem to be the only one with the problem.
Member
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Joined: Oct 2007
Posts: 354
Likes: 1
From: Cleveland, OH
Car: 87 IROC-Z
Engine: 305 TPI
Transmission: 700R4
re: side pipes illegal or not?
did i say it makes him any lower then me? NO.
i have NEVER seen a set of sidepipes on these cars that looked anywhere near "classy" or well thought out..
dual exhaust is just the better route to go, for many reasons.
side note, if his car is as stock as his profile claims, theres really no reason for either mod, a simple catback will more then get the job done.
I like the clean and simple look, as do the majority of the members here, i am guessing he is young, with little experience with cars...showing him the grass is greener on the other side, there is no harm in that, you seem to be the only one with the problem.
i have NEVER seen a set of sidepipes on these cars that looked anywhere near "classy" or well thought out..
dual exhaust is just the better route to go, for many reasons.
side note, if his car is as stock as his profile claims, theres really no reason for either mod, a simple catback will more then get the job done.
I like the clean and simple look, as do the majority of the members here, i am guessing he is young, with little experience with cars...showing him the grass is greener on the other side, there is no harm in that, you seem to be the only one with the problem.
So calling side pipes hilljack or whatever you chose to call them, that isn't you talking down to people who think they look good? You need to rethink what you say before you try and defend yourself, because you are full of contradiction. This is my last post in reply to you in this thread. I'm not contributing to you ruining the OPs thread or putting down his opinion any more.
Joined: Jan 2006
Posts: 930
Likes: 6
From: Sweden
Car: 1989 IROC-Z
Engine: 350 TPI
Transmission: Th700R4
Axle/Gears: 3.27
re: side pipes illegal or not?
89fbirdformula and tekkitan please be friends now 
No need of throwing **** at each other.
The taste is like your buttom.. splittet..
You can always post and give advice, thoughts , and tips and trix.
But we can be civilizised and not call each other names and fight over it.
If someone really wants sidepipes, let them get it.
Give him suggestions and explain bad/good things about the thoghts.
Dont shot it down right away, give him/her time to think about all informations etc.
and again, dont take this post the wrong way, I just hate seeing fights in such a good forum as this is
PS. Im getting the Hooker 2055 Coated, and Borla #14888 3" all the way this winter. seems like an awesome setup with a new Magnaflow 3" cat to, hopefully it will get an increasement
.DS

No need of throwing **** at each other.
The taste is like your buttom.. splittet..
You can always post and give advice, thoughts , and tips and trix.
But we can be civilizised and not call each other names and fight over it.
If someone really wants sidepipes, let them get it.
Give him suggestions and explain bad/good things about the thoghts.
Dont shot it down right away, give him/her time to think about all informations etc.
and again, dont take this post the wrong way, I just hate seeing fights in such a good forum as this is

PS. Im getting the Hooker 2055 Coated, and Borla #14888 3" all the way this winter. seems like an awesome setup with a new Magnaflow 3" cat to, hopefully it will get an increasement
.DS Thread Starter
Member
iTrader: (2)
Joined: Jun 2010
Posts: 105
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From: Shillington Pa
Car: 1982 Trans Am
Engine: LU5 CFI
Transmission: TH-200C
re: side pipes illegal or not?
i still havnt mad a desision on the side pipes the exhaust will come later but if i do the math and on cost performance on both and find out that the one is better i will go for it im trying to find out right now whats illegal or not so i dont go waisting my time on pointless research. id like true duals but i will have to put out a lot of monney for them and haveing the rear axle in the way might pose problems but if you say side pipes are bad i would like to know as to why they are bad and the car isnt stay stock so im not getting a catback just because it "sounds" good for $1000 when id rather performance but id rather you not say anything bad against my opinion for you dont have to even see them, thank you.
Member
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Joined: Apr 2007
Posts: 129
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From: Dayton, OH
Car: 1985 Pontiac Trans Am - PROJECT
Engine: 412 c.i. SBC / 6.75 L
Transmission: 700R4
Axle/Gears: Borg Warner 3.27
re: side pipes illegal or not?
When I bought my car, it was open header. I decided to go with the side exit, but I went with tips that I feel match the lines of the car... Here's the thread on here when I posted a vid of the look / sound.
https://www.thirdgen.org/forums/exha...installed.html
https://www.thirdgen.org/forums/exha...installed.html
Joined: Jul 1999
Posts: 10,950
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From: Orange, SoCal
Car: 1990 Pontiac Trans Am
Engine: 355 TPI siamesed runners
Transmission: Tremec T56
Axle/Gears: 12-Bolt 3.73
Re: side pipes illegal or not?
Everyone has an opinion, so please respect each other's opinions.
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