True Dual Exhuast

[studious03]

There is a 92 caprice 5.0 with True dual exhaust at the junkyard near my house. My question is since this custom set-up is ran from the heads there is no cat just pipe and mufflers, will i fail emissions? I plan to just unbolt them from the heads and install on mine so no cutting will be done...

[silicon212]

Originally Posted by studious03

There is a 92 caprice 5.0 with True dual exhaust at the junkyard near my house. My question is since this custom set-up is ran from the heads there is no cat just pipe and mufflers, will i fail emissions? I plan to just unbolt them from the heads and install on mine so no cutting will be done...

If there's no cats on it, it most certainly will fail the emissions inspection - both emission and physical inspection. They will not certify it unless there are cats on it. Since the LT1 Caprice had factory true dual-cat duals, you can put a dual-cat system on it, but the cats must be present.

[kahjdh]

Do it right after e-check so you have 2yrs until you have to worry again.

[studious03]

Yea i will pull them from the yard tomorrow and have my emissions checked next week b4 i put them on.... will take pix....

[studious03]

Here are some pix of my find: 40 series flowmasters w/custom pipping No CATS:

[kahjdh]

awesome score, they look alomst new too.

[studious03]

Thanks! i actually had to cut to remove them from the rear end, i plan to install them later this week after my emission test with not cats. will post pix of install....

[Cyrix_2k]

How much did they cost? I have $300 in my exhaust from the cat back and it's single!

[MT-2500]

Originally Posted by studious03

Thanks! i actually had to cut to remove them from the rear end, i plan to install them later this week after my emission test with not cats. will post pix of install....

Do yourself and your car a favor put cats on it with the duel exhuast.
Without them Anytime you drive on a federal highway it is illegal.
Saftey checks road stops and highway emmisions checks or accidents and you will be in big trouble. They can even mail you a ticket now days after you drive by one of them emmision check machines.
And without cats and 02 sensors your car emmision and computer system will not work right. Can result in shorter engine life and less gas millage.
Do not sat we did not tell you so but it is.
Your choice.
Good Luck MT

[studious03]

I got them for $70 i pulled.... i will most likely put cats on but not until my next emission check, this car will only be driven in the summer.... but thanks for your concern! Hopefully it will not rain so i can get under there.....

[studious03]

Just installed them Last night after my emission test without the cats just to see if there are any differences and i noticed very little power gain, and the temp gauge tells me that my car is overheating... Trial and error next step is to get 2 custom cats in there just so i don't have to worry about emissions and see if it will stop overheating.

[studious03]

Installed:

[1986Z28]

nice now get rid of those crappy tail lights and put some like mine on

[1986Z28]

nice looking car BTW

[kahjdh]

nice ride, now we need a sound clip.