Is a high flow cat better than no cat?

Is a high flow cat better than no cat?

There are no noticeable performance gains in using off-road pipes (no cats) over high flow cats. If you go with no cats it will sound a bit raspier (my opinion), and your car will smell (fact). The smell is unburnt fuel, oil, etc.

Do high flow catalytic converters make a difference?

Yes in the sense that they allow for the more efficient flow of exhaust gasses, removing restrictions that can impede performance. Vehicle owners who’ve significantly upgraded their engine power output (say, by adding a Stage 3 EST Power Pack) will notice more power by upgrading.

Are hi flow cats legal?

Absolutely, not all 200 cell cats are legal, but 200 cell is the highest flowing cat that is. No one will know you have 100 cell cats until you need to get an emissions test. If you do, it will fail and you will have to fit cats that comply so you can pass. There is no fine for having non efficient cats, just no cats.

How much HP does a high flow cat add?

Audi B9 A4/A5 2.0T High Flow Catalytic Converter: Provides performance gains of up to 14 WHP and comes with a complete install kit. Turner Motorsport N54 Downpipes – With High Flow Catalytic Converter: For select BMW models and manufactured with 304 stainless steel.

Are high flow cats louder than stock?

High flow cats will be a tad bit louder for sure. Depending on what you find loud, it may not be a significant amount however.

Do high flow cats smell?

High flows are called high flows for a reason. They flow exhaust fumes at a much higher rate, therefore a lot less “smell” (fumes) get trapped in the cats.

Are high flow cats louder than stock cats?

Do high flow cats require a tune?

No high flow cats do not require a tune. As you are well aware, they will be optimized with a tune.

Will high flow cats throw a code?

Yep, hi-flow cats will throw codes 99% of the time.

Are high flow cats louder?

Well-Known Member. High flow cats will be a tad bit louder for sure. Depending on what you find loud, it may not be a significant amount however.

Do high flow cats make exhaust louder?

Do high flow cats reduce noise?

High flow cat will reduce the the loudness by alot and on hondas will take the tinnyness of the exhaust note out. hah I don’t think you guys have learned from experience here. Jeff I put on a set of headers and left my stock cat on and it sounded nice deep but quiet sound unless I stomped on it.