I was at the exhaust shop yesterday getting my new flow masters installed and we were talking about things I could do to my car and recommended getting rid of my cat or gutting it because it has a filter in it that restricts flow, and he said if I get rid d it I'll notice a difference. So what all wil I gain of I get rid of my cat? I don't have any emission requirements here and I already have the egr gone so what would this do?

 

"Stock cats suck, these cars were choked with emissions equipment courtesy of the gas crunch, put a high flow aftermarket cat(summitracing again) on it, gutting cats is illegal and despite what most people think, will actually HURT your performance because it messes up the airflow, it also makes your exhaust smell like rotting eggs, if for whatever reason you insist on not having a cat, put a straight pipe in its place so that the flow doesn't get messed up."

 

So it would help flow, that's good. Thank you

 

Well your neighbors dog won't have anything to chase!

 

I hope not lol, my neighbors has two over weight chawawas lol

 

Those are now called "Yo Kato Taco Bell's"!lol!

 

The cat is not the most restrictive part of your engine flow. The heads on the engine itself are.

though you might feel a slight increase in power, it's not enough to justify removal of pollution control equipment.

I would find a different exhaust shop, if I had one tell me that I would see a difference by removing pollution control equipment. They are stuck in the '70s and early '80s when there was at least a little truth to it, but still not enough truth to actually gain anything by removing the equipment.

Keep the cat, or put a high flow cat on it, if you feel you must, just don't remove it entirely, or gut it.

In many places that very act is quite illegal, and can cost you many thousands of dollars in fines.

 

But it's not required in my state, no inspections in Indiana lol. I'm not Doing alot of work to the engine of this car because as you can tell in my post. It's coming out soon for something alot bigger. Only things I'm doing are cheap things, like the new muffler, removal of the cat, maybe headers if I can get them used cheap, just. Heap little stuff to get me by till my new engine

 

leave it on, it will make the car sound like crap with no cat and a flowmaster muffler

 

If it waz me, I'd go with a hi flow from Jeg's or Summit. In fact set up the whole exhaust for your new engine except for your y-pipe. That way when you drop your V8 in, all you'll need is a new y-pipe. Might as well since your getting the exhaust done. No point in doing it twice....

Or you could ditch the cat and have them put on a glasspack and make it sound like a crop-duster! LOL!

 

im thinking just standard pipe to replace the cat, when i drop my lt1 in im getting new exhaust anyways, dual 3"

 

So why waste any money, time or effort on this exhaust then?

 

going to be in for a few years

 

i have done pretty much what you are describing. first i put headers with the stock cat. i felt a real difference in a good way. then i cut off the cat and put a cherry bomb glass pack in its place. although it has an "interesting" note i plan on putting a cat back on. from what i feel the engine definitely seems to rev faster i dont feel nearly the torque. btw this was done to a 2.8 mpfi