Just out of curiousity

[Dangerdog]

If you cut out all of the resonators and went with straight pipes FROM the cat, would that give you the most power? Or would a muffler like Borla actually improve airlfow. This stems FROM an argument between myself and a buddy.

[MagnumFreak]

I think it is more about finding balance. Reduce the backpressure too much and suffer losses in bottom end torque but you gain in top end hp. But, FROM what I am told straight pipes would yield the highest hp possible. Sounds really mean in this car also. Tried it when my mufflers where removed. :twisted:

[Dangerdog]

riding with it right now. I never received my exhaust, so i just cut out ALL the resonators and put tips on the pipes. Its pretty loud, but not quite illegal. I think it could be a bit deeper though. Now my question is will i mess up something in the computers by cutting the Cats off? Its legal here in FL to ride without them. (We have no emissions here.) If i take the cats off, i would definately have to get some cans though, i dont even want to think of how loud it would be without anything.

[chicano]

Well on borla's website it says their systems are engineered so well that they flow more efficiently then straight pipes.

But of course that's FROM their website so take the info with a grain of salt.

[Earcandy]

riding with it right now. I never received my exhaust, so i just cut out ALL the resonators and put tips on the pipes. Its pretty loud, but not quite illegal. I think it could be a bit deeper though. Now my question is will i mess up something in the computers by cutting the Cats off? Its legal here in FL to ride without them. (We have no emissions here.) If i take the cats off, i would definately have to get some cans though, i dont even want to think of how loud it would be without anything.

Now I might be wrong emissions are not in my field but aren't the cats a federal requirement? and any modification or removal of them a min $50K fine?
Most of the shops here are inspected regularly and have to account for each one new and old.
I am not trying to be a know it all so don't take this the wrong way

[Greeneyej]

Earcandy has it right.
The CATS are part of the federal emissions package. While you might not have
Smog inspections and what not you could be dinged for it.
Its just not worth the issues if you ask me. Leave the CATS on and work FROM there back. You will have less problems to get some thing fixed if you have to deal w/ the dealer.
Just think of all the excuses the Dealer would come up with to push you aside when you
Go to them to fix a problem.

J

[Rev.Hammer]

A law that is not enforceable is not a law
I quote myself FROM and earlier :
Muffler case mass, thickness,design, exhaust pipe thickness, rigidity,Pipe diameter, number of bends, exhaust manifold design, material of construction, and mass also affect exhaust tone and loudness. My grandfather had an exhaust system made of cast iron pipe and 4 mufflers that fit 1964 426 Max Wedge Polaras. Daayyummm quiet! (He used to run 'shine)

Now. As far as Cat\Cons go. The car is sold to me with the Federally mandated emissions system in place. It is only Federally mandated that they cannot be tampered with in counties that have emissions testing. Those counties are all counties over 250000 citizens. Also, if the local law prohibits or there is a state or local vehicle inspection that requires that the emissions system remain unaffected, you cant mess with it.

I live in Madison County, Alabama. Population: 185000. No Vehicle inspection, no emissions testing.

I am going to take those babies off as fast as I can! I can legally thumb my fat nose at ole Johnny Law!! Muwaaaahahahahahaahaaaaa!!!!!


Exhaust pipe effieciency is a ratio of diameter versus length of pipe, versus speed and density of gasses out.. The most effecient pipe is that which is straight and without blockages.

Federal Laws MY SHINY METAL ASS!!!

[PropMan]

"A law that is not enforceable is not a law."

Content edited by Moderator.

[Cucamonga Red RT]

"A law that is not enforceable is not a law."

Content edited by Moderator

Well! ! :lol:

Seriously though, Hammerfoot is one of the most helpful, supporting guy here. Maybe we can take time to understand his humor? No? :?

[billapex]

The only issue you'll have is that the "Check Engine" light will illuminate because the cats are removed. You'd need to install a pair of MIL (Malfunction Indicator Lamp) Eliminators, which plug INTO the rear O2 sensors and send an "all's OK" signal back to the computer, indicating the cats are still in place.
Try calling Casper's Electronics re: their Viper O2 simulators. They may use the same connector as the Magnum. https://www.casperselectronics.com/M...ry_Code=dviper
(The front O2 sensors monitor oxygen content of the exhaust, while the only job of the rear O2 sensors is to CHECK cat efficiency.)

[Dangerdog]

The only issue you'll have is that the "Check Engine" light will illuminate because the cats are removed. You'd need to install a pair of MIL (Malfunction Indicator Lamp) Eliminators, which plug INTO the rear O2 sensors and send an "all's OK" signal back to the computer, indicating the cats are still in place.
Try calling Casper's Electronics re: their Viper O2 simulators. They may use the same connector as the Magnum. https://www.casperselectronics.com/M...ry_Code=dviper
(The front O2 sensors monitor oxygen content of the exhaust, while the only job of the rear O2 sensors is to CHECK cat efficiency.)

Thanks a ton, thats exactly what i was looking for. Ill CHECK INTO that and let you know how it went. I agree on the part about the dealer giving me crap, but i put so many miles on my car that ill be out of warranty (more than likely) next year. I cut the cats off of my 91 chevy z28 and had flowmaster exhaust, and it sounded awesome. But i knew that they had sensors for that crap nowadays. After driving the car for a few days, i have decided to keep it with straight pipes until i get those cats removed. It feels like im riding in a race car for real.

[Rev.Hammer]

"Content edited by Moderator"
Hey PropMan... what did I say? I was not trying to pull anyones feathers the wrong way. I was merely stating the obvious. Besides, emissions laws, after Initial purchase , doe not apply here where I live.

Not wanting to cause a fight, but not afraid of one either.

Hey Billapex! Genuis idea! But, I am curious, if I weld bungs INTO the exhaust tubing and reinstall the O2 sensors INTO the exhaust streams; would these simutlators be necessary?

[PropMan]

I was pointing out that FEDERAL EMMISSIONS LAWS apply to EVERYONE--if your state doesn't test your car it doesn't make the Federal Law void! You are still breaking the law and I used some very bad words that I shouldn't have in questioning both your sanity and intelligence. Sorry about that!

It's just not responsible to pick and choose the laws we agree to obey. You are being irresponsible, plain and simple . . .

[Rev.Hammer]

Snip
questioning both your sanity and intelligence
Snip

Heehee,go ahead, wont do you any good to. I doubt them myself!

OK,
I shall ask the moderators on this one.
If I go INTO a long winded and lengthy proof of my statement plus a general whiz-bang debunking of PropMans opinion; would it be welcomed and or tolerated?

[PropMan]

You can't offend me! Got for it! He he