This is topic exhaust pipes, whats legal and illegal? in forum Tech Talk at Northern California Ford Owners  .


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Posted by akoni (Member # 5119) on :
 
as the thread title says, whats considered a legal exhaust pipe and whats not? i see all these guys with side exhausts or having dumps right after the mufflers so yea.
 

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Posted by two-gun kid (Member # 5891) on :
 
i heard that you have to have exhaust thats over the axle to be legal. i think that as long as the tips can be seen you should be ok
 

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Posted by BlackDrop50 (Member # 1715) on :
 
If it passes smog and is not too noisy it's legal, otherwise its not


dumps are alright as long as you have mufflers
 

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Posted by Motorhead6T5 (Member # 4969) on :
 
Technicaly you can't modify the exhaust period,unless the stock stuff is bad,like burnt out cats,holes in muffler etc.

You can get away with headers if they come with C.A.R.B. certifcation,high flow catted h-pipe,and they typicaly leave you alone with performance mufflers/catback.
 

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Posted by Wolfie351 (Member # 651) on :
 
http://www.semasan.com/main/main.aspx?id=60106
 

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Posted by akoni (Member # 5119) on :
 
so pretty much if you still have the cats on and mufflers on and the sound isn't over the sound limit then you're good to go?
 

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Posted by Wolfie351 (Member # 651) on :
 
As long as it's under 95db, you'll be fine. But, that doesn't mean you won't get pulled over if your car is loud. A cop isn't going to have a decible meter in their trunk, if they think it's too loud, you will be ticketed. And, it's not up to them to prove you're guilty, you have to prove your innocence with a certificate of compliance.
 

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Posted by akoni (Member # 5119) on :
 
so dumps on my dynomax race bullets would prolly exceed that huh?
 

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Posted by 94gt (Member # 3060) on :
 
that and I believe you cannot have the ehxaust exit from underneath the car at a point where it could get into the passenger compartment
 

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Posted by Eddie510 (Member # 2354) on :
 

quote:

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Originally posted by akoni:
so dumps on my dynomax race bullets would prolly exceed that huh?

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hey whats up man im over here in fremont to. just wanted to know where did you get those mufflers? i had a pair before bu i sold them, they sound hella good. What store you baught them at pls let me know eddie. get a cat back system for those muff. they sound good
 

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Posted by BlacksheepMod50 (Member # 2378) on :
 
Just as a side note:
I recently got cited for loud exhaust... (LT headers, off-road Xpipe, mac cat back)... I was told i had to go to the BAR to show compliance. I switched back to stock exhaust manifolds, stock H-pipe with 6 cats (you know that knocks the sounds WAY down). and my aftermarket mac system. I registered on the DB meeter at 96.3db... legal limit is 95db with a -/+ 1.5db tolerance. I failed by the set limit, but passed by their tolerance by .2db and my car wasn't even close to what I would consider loud.

They are really strict with the db limits. With all this cracking down happening lately i'd be careful when/if considering exhaust systems or components

[ August 11, 2005, 12:06 AM: Message edited by: BlacksheepMod50 ]
 

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Posted by h8louzn (Member # 1075) on :
 
Man I'm now real glade I'm building a 55 ford and sold the stang.
No smog and not many problems with getting pulled over as most people that have old cars are old!
I do think it's that they target loud exhaust, but I know I hate some of them when behind them.
There is no need to have 1 chamber flows no cats and rev it to 6000 just to hear your exhaust make noise!!!
A little common sence works wonders!
 

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