True Duals... How/What...
Thread Starter
Joined: Jul 2007
Posts: 2,861
Likes: 4
From: Ringoes/Flemington, New Jersey
True Duals... How/What... Does true duals really give a decent power boost? Will I still pass emissions? how is it routed, and who sells stuff for it? 
thanks!
thanks! First off, congrats on spelling Duals correctly, that little four letter word has eluded many ls1tech posters for quite some time
secondly once you relocate the cats it makes a car illegal in the states with emission testing
I dont have true duals but I would imagine they would flow much better than the current y system in the stock f-bodies.
if you do a search there are plenty of people who have gone with true duals
as far as I know nobody sells a true dual "kit" you will have to get a muffler shop to fab up a system for you.
hope this helps
secondly once you relocate the cats it makes a car illegal in the states with emission testing
I dont have true duals but I would imagine they would flow much better than the current y system in the stock f-bodies.
if you do a search there are plenty of people who have gone with true duals
as far as I know nobody sells a true dual "kit" you will have to get a muffler shop to fab up a system for you.
hope this helps
first what you want is long tube headers. if you have those, then the next step is a universal x-pipe (or h-pipe) kit from summit or jegs, 2.5" or 3".
then select mufflers, bullets or other race mufflers are basically pipes with some little ripples in them to make them called a muffler. they really do nothing to muffle the sound, they make your car have a lot of extra noise inside the cab if you dump them under the car. you can also run regular higher flowing mufflers but not all of them will fit under your car. you have a choice of dumping the exhaust using turndowns under the car, or you can go over the axle and out the back.
but first, get long tubes if you dont have them, actually, just get it all done at once like i did, you will love it.
then select mufflers, bullets or other race mufflers are basically pipes with some little ripples in them to make them called a muffler. they really do nothing to muffle the sound, they make your car have a lot of extra noise inside the cab if you dump them under the car. you can also run regular higher flowing mufflers but not all of them will fit under your car. you have a choice of dumping the exhaust using turndowns under the car, or you can go over the axle and out the back.
but first, get long tubes if you dont have them, actually, just get it all done at once like i did, you will love it.
Thread Starter
Joined: Jul 2007
Posts: 2,861
Likes: 4
From: Ringoes/Flemington, New Jersey
Originally Posted by Captainofiron
First off, congrats on spelling Duals correctly, that little four letter word has eluded many ls1tech posters for quite some time
secondly once you relocate the cats it makes a car illegal in the states with emission testing
I dont have true duals but I would imagine they would flow much better than the current y system in the stock f-bodies.
if you do a search there are plenty of people who have gone with true duals
as far as I know nobody sells a true dual "kit" you will have to get a muffler shop to fab up a system for you.
hope this helps
secondly once you relocate the cats it makes a car illegal in the states with emission testing
I dont have true duals but I would imagine they would flow much better than the current y system in the stock f-bodies.
if you do a search there are plenty of people who have gone with true duals
as far as I know nobody sells a true dual "kit" you will have to get a muffler shop to fab up a system for you.
hope this helps
Originally Posted by 94Pontiac
you could make it legal
if you have emissions testing in your county and they stick the sniffer up the tailpipe then most definitely you will be illegal with duals, but if you get technical moving or altering the catalytic converters is illegal and makes your car not pass inspection
but LT1man said is true, get some LTs first, then worry about the exhaust
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Originally Posted by Captainofiron
it depends on where he lives
if you have emissions testing in your county and they stick the sniffer up the tailpipe then most definitely you will be illegal with duals, but if you get technical moving or altering the catalytic converters is illegal and makes your car not pass inspection
if you have emissions testing in your county and they stick the sniffer up the tailpipe then most definitely you will be illegal with duals, but if you get technical moving or altering the catalytic converters is illegal and makes your car not pass inspection
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TECH Resident
Joined: Jul 2007
Posts: 749
Likes: 1
From: Spokane, WA
Originally Posted by meangreenformula
Why is that? from a smog test what would be the difference in duals with cats and a y pipe setup with cats? Either way it isn't the duals that makes the setup illegal, its the LTs.
Last edited by nighthawk15; Aug 14, 2007 at 08:01 PM.
