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BEST EXHAUST FOR STOCK H-PIPE??

  • Thread starter Thread starter 01GTPony
  • Start date Start date Jul 1, 2004
0

01GTPony

New Member
Jun 29, 2004
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San Diego, CA
Jul 1, 2004
#1
  • Jul 1, 2004
  • #1
I live in cali so i'm thinking i'll save myself the trouble of fines, fix its, failed smogs, cop hassling...etc and stick with the stock H-pipe. I do however want a cat-back that will turn heads. I was thinking about getting the magnaflow catback w/ magnapacks. What do u guys think I should do? Also some advice on the whole midpipe situation...I think theres a law now that the catts must be factory to pass smog.
 

road rage

New Member
Dec 14, 2003
433
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R.I.
Jul 1, 2004
#2
  • Jul 1, 2004
  • #2
you can get a catted x pipe and it will pass emissions
 

hognutz

New Member
Nov 12, 2002
1,940
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albany, oregon
Jul 1, 2004
#3
  • Jul 1, 2004
  • #3
Get something on the loud side otherwise you won't hardly notice it with the stock midepipe on.

I would go with magnapack or bassani I think. have not heard the borla stinger on a car with cats. It may be acceptable. the normal borla would be on the quite side. flow 40's or spintechs if you stay alumized but that is not what I would do.
 
1

1stmust02

New Member
Mar 2, 2004
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Jul 1, 2004
#4
  • Jul 1, 2004
  • #4
exhaust

Hey,
I live in NJ and we have issues with taking off perfectly good catted h-pipes. Plus even with a good catted x or h-pipe with two cats we will have issues with visual.
I have the stock h-pipes and have a Magnaflow not the pacs on my 2002 GT and they are loud. You can get loud exhaust with the stock h-pipes. I like the very deep tone, with no drone and really loud and aggressive sound when you are on it. If you want louder go with the pacs, but I don't like the sound of the pacs myself. that is why I went with the magnaflows. Believe me, I turn heads with the sound, when cruising or partial throttle. People up the street will turn around when they hear the car.
So you can get a good, loud, aggressive sounding exhaust with the stock h-pipe.
Go with magnaflows or the pacs, you won't regret it.
 

crew_dawg16

New Member
Apr 25, 2004
445
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0
DeKalb, IL
Jul 1, 2004
#5
  • Jul 1, 2004
  • #5


I just installed my magnaflow catback yesterday, when I started it I didn't notice much difference but as soon as I drove it off the lift I fell in love. This system sounds very good with the stock H-pipe and loud when you want it.
 

Smeech

Member
Feb 28, 2004
148
1
16
Fremont, Ca
Jul 1, 2004
#6
  • Jul 1, 2004
  • #6
My Mac catback sounds pretty good... quiet idle, but when you get on it, it growls, and gets pretty loud. However, I'm probably still going to get an o/r h-pipe
 
B

bdcardinal

tree hugger
Jun 10, 2003
3,612
16
69
santa barbara, CA
Jul 1, 2004
#7
  • Jul 1, 2004
  • #7
ya with a catted x or h you probably would pass tailpipe, however you wont pass the visual inspection. any emissions component that you put on a car in CA must have a CARB EO number. another thing you have to remember is that there are new laws in CA about the maximum decibel level of the exhaust. the law is 95 decibels however there is a 1.5db range on either side. the place im gonna start working for in a few days does these tests. they can only be done at a referee's station.
 

twogts4us

15 Year Member
Apr 1, 2004
4,188
12
79
Dunedin, FL
Jul 1, 2004
#8
  • Jul 1, 2004
  • #8
Flowmaster American Thunder catback still rules.
 
0

01GTPony

New Member
Jun 29, 2004
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San Diego, CA
Jul 1, 2004
#9
  • Jul 1, 2004
  • #9
Do you think the magnapack system would pass the decibel test?
 
B

bdcardinal

tree hugger
Jun 10, 2003
3,612
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69
santa barbara, CA
Jul 1, 2004
#10
  • Jul 1, 2004
  • #10
i have no idea. 95db is pretty loud. ill check on what rpm they check it at for the 4.6 motors.
 

tygr1

New Member
Jun 16, 2004
318
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SoCal
Jul 1, 2004
#11
  • Jul 1, 2004
  • #11
Dumba$$ question? What is a 'catted' H pipe?

Be gentle with me, I'm old.
 
B

bdcardinal

tree hugger
Jun 10, 2003
3,612
16
69
santa barbara, CA
Jul 1, 2004
#12
  • Jul 1, 2004
  • #12
its a h pipe that has 2 catalytic converters on it. they arent legal in CA because they only have 2 cats on them. CA law for 96+ cars is that you must use OEM cats. so since stangs usually have 4 cats, you need to have 4 cats.
 

tygr1

New Member
Jun 16, 2004
318
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SoCal
Jul 1, 2004
#13
  • Jul 1, 2004
  • #13
Ahaaa...oops!
 

wms004

Founding Member
Jan 15, 2002
2,864
2
49
Los Angeles
Jul 1, 2004
#14
  • Jul 1, 2004
  • #14
01GTPony said:
I live in cali so i'm thinking i'll save myself the trouble of fines, fix its, failed smogs, cop hassling...etc and stick with the stock H-pipe. I do however want a cat-back that will turn heads. I was thinking about getting the magnaflow catback w/ magnapacks. What do u guys think I should do? Also some advice on the whole midpipe situation...I think theres a law now that the catts must be factory to pass smog.
Click to expand...
catted magnaflow X here.. not worried about emissions at all.. if you are scared keep your stock H and bolt it back on right before the test.. no biggie.. It will pass the sniffer fine with the catted Magnaflow X.. you just won't pass the visual at half the smog places since their book says 4 cats and the magnaflow has 2.

The only way to get noticable power out of the exhaust side is to change out the stock H.

-wade
 

wms004

Founding Member
Jan 15, 2002
2,864
2
49
Los Angeles
Jul 1, 2004
#15
  • Jul 1, 2004
  • #15
bdcardinal said:
its a h pipe that has 2 catalytic converters on it. they arent legal in CA because they only have 2 cats on them. CA law for 96+ cars is that you must use OEM cats. so since stangs usually have 4 cats, you need to have 4 cats.
Click to expand...
easy to find a shop that will pass the car as long as it passes the sniffer.. there are plenty of gas stations with workers with aftermarket pipes/illegal o/r pipes in CA.
 
K

kennym01

New Member
Jun 23, 2003
343
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0
Jul 1, 2004
#16
  • Jul 1, 2004
  • #16
wms004 said:
easy to find a shop that will pass the car as long as it passes the sniffer.. there are plenty of gas stations with workers with aftermarket pipes/illegal o/r pipes in CA.
Click to expand...
Not so easy anymore since they passed the new emissions law in California. You now have to put your car on a dyno machine and most of those little gas stations stopped doing smog's because they couldn't afford the new machine to do the dyno test on your car. So a lot of those shops that were doing smog's aren't doing them anymore, which means there are less places to choose from when the time comes to do your smog...I'm running 40 series flows with my stock h-pipe, no problems with smog testing, and the car sounds great. I love that old school muscle car sound. Unless your going to do a lot of other mods to your car, most exhaust systems aren't going to net you a whole lot more power. If your going to keep your stock h-pipe then go with the sound you like....
 
F

flipnsac

Member
Nov 10, 2003
159
0
16
Northern CA
Jul 1, 2004
#17
  • Jul 1, 2004
  • #17
01GTPony said:
Do you think the magnapack system would pass the decibel test?
Click to expand...

I have Magnapacks and they are only really loud at WOT. They are actually fairly quiet at idle. I have been next to police cars at stop lights and I take off and never have a problem with sound level. Of course I just barely step on it when I'm next to a cop. But if you take off from a stop and put the pedal to the metal......IT IS LOUD, BABY!
 

00s281sc368

New Member
Dec 14, 2003
532
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0
Fremont, CA
Jul 2, 2004
#18
  • Jul 2, 2004
  • #18
Mine has stock H-pipe and a Borla cat-back installed by saleen. It's quite loud and has a very nice deep sound. I successfully passed the CA smog check on the new dyno testers and all my new supercharger setup with 0% emissions.
 
0

01GTPony

New Member
Jun 29, 2004
18
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San Diego, CA
Jul 2, 2004
#19
  • Jul 2, 2004
  • #19
What if I busted the guts out of two of those cats?
 

tygr1

New Member
Jun 16, 2004
318
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SoCal
Jul 2, 2004
#20
  • Jul 2, 2004
  • #20
Oh no...that's just never been done! For shame!
 
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