I'm buying Pacesetter LTs very soon and was wondering how much exhaust flow would be sacrificed if I went with a catted y-pipe versus a wide-open ORY?

What are the advantages to the catted y-pipe?

If I go with the catted y-pipe, will these cats wear out just as fast as the factory GM cats or will they last longer?

Will I need a tune with the catted y-pipe and is it better to get it with all of the emissions equipment or not to?

My only drawback to the ORY is I don't want my car to be obnoxiously loud to the point where I can't hear the radio, talk on my phone or to a passenger.

Any input would be appreciated.

 

one advantage is you still can pass the visual in most states. lt's make it tougher not impossible to pass emissions. from what ive been told, hi flow like random tech only kill around 3-8rwhp that could be off base. havent read any complaints about them wearing out early either. as far as noise with the ory, i can drown out a harley but im only using a bullet muffler, so muffler selection is key.

 

advantages are good emissions and a milder sound.

with long tubes, you'll still be "illegal" as far as the law goes. even if you do pass the sniff test, a proper visual inspection will still fail

i think 3-5hp total loss for the hi-flow cats is about right. maybe less, since the gains from an ORP on stock manifolds only yields about that much power.

i have flowtech LTs and ORP, and even with my 233 cam i could still carry on a normal volume conversation and still hear the radio just fine with a similar exhaust to the "dynomouth". it was raspy when you stomped on it, but that's the way its supposed to be

no tune is needed with headers, to get optimal power from them it is a good idea, but part of that gain would still be found with a tune on stock manifolds. the cats should keep the rear o2 sensors happy, if not simple o2 simulators will do the trick or they can be tuned out.

i don't think you'll regret the ORP, word is that the Rumbler is tamer with no cats than the loudmouth.

 

HR or CC did an article on this several years ago. They used an older car but the numbers should still work. There was a measely 2 rwhp difference between an ORY and high flow cats. That was it. -2 hp and you stay legal (I've seen cops looking under cars just to catch people) and you help keep the environazis from coming down on your area like CA.

The catch is, not all "hi flow" cats are created equal.
http://installuniversity.com/install...sity/index.htm

 

hey man...go talk to DanBUCF on the florida forum...he has a car similar to what you plan

LTs, orp, dynomouth...

see what he thinks...

 

Dude whatever you do DO NOT talk to DanBUCF!!! He thinks he knows everything and even worse than that he is a big fat hairy gorilla man. Anthony, if I had it to do over again, I would DEFINITELY consider throwing some cats in there just for the "cop looking under the car" scenario. Sure, I might get a noise violation, but no $5,000.00 or however much federal emissions violation ticket. Only thing is I've never heard the LT's with the aftermarket cats. Anybody running them around FL?

Abe

 

DanBUCF is a BIG FAIRY, lol... He knows nothing of what he speaks.

 

Why all the haters?

I can only guess 2 reasons...

1. My car runs...aimed right @ you Eddie
2. My car can runs quicker than Abe's

Don't make me bring it Kiddies.

Anthony, you know how my car sounds and I think you've heard Abe's before. He has the Rumbler on there w/the longtubes so he would probably be the best person to ask...my vote is to run w/out the cats though...screw the hippie tree huggers.

Oh, and as far as the cop scenario goes, I was pulled over on 408 one night coming home from downtown...the orange county deputy said "I don't even wanna know what kind of exhaust system is on that car, but it is the sweetest thing I have ever heard"

 

just felt like jumpin' on the hater train! I wanted to to say that yeah he doesnt know jack poopoo about nada. he is a smelly homosexual who needs to shave that ***** he calls a face!

 

Then the cop gently touched Dan's nipples and kissed him softly on the base of his neck. The deputy's name is John.

And you car is faster than mine because you have no parasitic drivetrain loss like I do from my diff.

Anthony, let me know when the next time you're coming to Orlando is and you can listen to my car if you haven't before. The only problem would be listening to it while I'm driving it because right now my diff is the loudest part of the car. And unless you can hear it under a load it doesn't do it justice.

Dan: it's too bad that Anthony won't be coming into town for a UCF C-USA championship game.

Abe

 

Only prob there is that they have power you don't. The whole Democrat party is swayed by them. Then you have nice agencies like the EPA getting all up in our business and the more you pollute the worse they'll get.


For the cop scenerio, I know in Houston there is a certain SOB State trooper that likes to pull cars w/loud exhuasts over and writes all sorts of tickets for no EGR, no Air, no cats. I've also watched cops pick over friend's cars just looking for something that they could write up. Bastards worked the horn and even check the tint. Ended up making up a charge for no hood and some other things. They got dismissed but he still had the hassel of going to court.

 

Holy ****, a possible $5,000 violation???

That's crazy, and I wouldn't think any police officer would be harsh enough to hit anyone with that kind of fine.

 

I've never heard your car or Abe's after you guys installed the headers and ORY. If I did, this decision would be a little easier.

Why can't all cops be like that?

 

I'm back in town for the night before Thanksgiving and I'm leaving the night of, so I'll see, and I'm back in town for a week before Christmas. I'm sure I could get an idea of what it's going to sound like even if your diff. drowns out part of the sound. I doubt I'd get pulled over either, my car looks so stock and the fact that it's not a flashy color helps a lot. When I put the Rumbler on, I thought I'd get pulled over for a cop not noticing a muffler back there, but the odds of a cop who knows F-Bodies that well running into me and caring about something like that...

Whoa now...
...that's because it's going to be in Memphis, or maybe Hawaii.

And at least our coach doesn't cry when we lose.

 

If I got paid as much as George O'Leary and wasn't fired after NOT WINNING A GAME ALL SEASON LAST YEAR I wouldn't cry about anything either. You see, in the SEC football actually means something, so excuse Urban Meyer for getting emotional. But I don't want to talk too much **** about UCF and their "football team". I'll wait until September 9th, 2006.

Conference USA Champions. I'm reminded of that joke, how's it go again....
"What's better than winning the Special Olympics?"

Anyway, both of our teams are rebuilding. We will need a couple seasons to recover from the walking catastrophe that was Ron Zook. In the meantime, be a man and put some damn headers on your car.

Abe