Bypass the cat?

[MINIHEMI46]

I was wondering if you Y off the exhaust before the cat converter and then Y it back into the exhaust after the converter would the turbo spool up faster, make more power and not through a computer code?

[bobs turbo pt]

would the car still pass state inspection ??

[Mean Green]

Won't do a thing. A 2 1/2" catback will help with turbo spool. If you want to maximize turbo spool then you'll need a full aftermarket turboback exhaust.

[SRG]

From what I've heard if you disable the catalytic (sp?) converter, you coule be nailed with a HUGE fine. I think its a federal law too, not just state.

srg

[Mean Green]

Originally Posted by SRG

From what I've heard if you disable the catalytic (sp?) converter, you coule be nailed with a HUGE fine. I think its a federal law too, not just state.

srg

It's around $2500. That's why I went with a Magnaflow highflow cat.

[CREWZIN]

Hollowing out a catalytic converter or replacing it with a test pipe or straight section of pipe is a violation of Federal Law punishable by fines in excess of $25,000 and/or jail time for both the vehicle owner and the person doing the work.

[MINIHEMI46]

Thats why I said I was just wondering IF.

[cleverklutz]

That's good to know, I think I'll have to check into what Canadian law states, I was just about to do that to mine. I would love to pick up some more power and mpg. I wonder on a good running engine which causes more pollution, a cat and lower fuel mileage, or no cats and better mileage...

Ben

[Mean Green]

Originally Posted by cleverklutz

That's good to know, I think I'll have to check into what Canadian law states, I was just about to do that to mine. I would love to pick up some more power and mpg. I wonder on a good running engine which causes more pollution, a cat and lower fuel mileage, or no cats and better mileage...

Ben

pick up some more power and mpg?

[cleverklutz]

To an extent if you remove restriction from the intake, the head, or the exhaust you'll pick up "free horsepower." An engine is often compared to a big air pump, make the air go in, through, and out easier, you'll improve efficiency.

I previously had a 1993 Dodge Dynasty with a 3.3L engine. I put in a test pipe, removed the muffler, and ran a 2 1/4" diesel resonator. I gained a second in my 0-60 time. My brother has a 1994 New Yorker. His trip computer showed he gained 2 mpg when he pulled the cats out of the exhaust.

I'm thinking there are gains to be had on my car pulling the cat. Keep in mind mine is N/A tho. I'll check into the bylaws here, and if it's all good I'll try it.

Ben